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  • (PDF) Effect of Nozzle Geometry on Air-Jet Texturing ...

    'Effect of Nozzle Geometry on the Flow Charact eris tics of Small W ater Jets', Proceedings of the Institution of Mechanical Engineers, Part C, Journal of M echanical Engineering Science, Vol. 220 ...

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance

    determine the effect of air inlet angle are inconclusive and require further investigation. The air-jet texturing process is widely known for its ability to produce spun-like synthetic continuous filament yarns. Structural modification is achieved by contact of the continuous feed yarn with a supersonic air stream delivered by a nozzle. The

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance ...

    This paper systematically investigates the effect of a number of geometric parameters on the texturing performance of air-jet texturing nozzles. In order to facilitate the research, an air-jet text...

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  • (PDF) The effect of nozzle geometry on the flow ...

    Results are presented of a wide-ranging investigation of geometry effects on the flow parameters and jet characteristics of nozzles with diameters between 120 and 170 mu m. Nozzles …

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  • (PDF) Effect of Nozzle Geometry on a Model ...

    Effect of Nozzle Geometry on a Model Thermocompressor Performance – a Numerical Evaluation ... Download full-text PDF Read full-text. ... air, propane, and others. Jet …

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  • [PDF] The effect of nozzle geometry on the flow ...

    DOI: 10.1243/0954406JMES430 Corpus ID: 55945825. The effect of nozzle geometry on the flow characteristics of small water jets @article{Ghassemieh2006TheEO, title={The effect of nozzle geometry on the flow characteristics of small water jets}, author={E. Ghassemieh and H. Versteeg and M. Acar}, journal={Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical ...

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  • Effect of nozzle geometry on heat transfer characteristics ...

    Request PDF | Effect of nozzle geometry on heat transfer characteristics from a single circular air jet | The paper reports results on the effects of nozzle geometry on local and average heat ...

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  • Effect of nozzle geometry on critical-subcritical flow ...

    Nozzle geometry does have a significant impact of nozzle performance. Effect of single-phase air flow through a nozzle revealed the effect of different nozzle parameters on nozzle performance. A lower diverging angle and no elongated throat gave the best critical pressure ratio and a low pressure drop.

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  • Effect of nozzle geometry on heat transfer characteristics ...

    The paper reports results on the effects of nozzle geometry on local and average heat transfer distribution in unconfined air jet impingement on a flat plate. An infrared thermography camera is used to record the temperature distribution from isotherms on a uniformly heated impingement surface. Experiments have been conducted with variation of ...

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  • Effect of geometrical parameters of air-induction nozzles ...

    Effect of air induction nozzle (coarse droplet), air assistance and one-sided spraying of the outer tree row on spray drift in orchard spraying Annual review of agricultural engineering , 4 ( 1 ) ( 2005 ) , pp. 116 - 128

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  • Effects of geometry on the flow characteristics and ...

    Air-jet texturing is a versatile process for producing a range of synthetic yarns with a spun-like appearance, which are widely used for apparel and furnishing fabrics and industrial textiles.There is no universal nozzle capable of processing any supply yam of any linear density.The role played by nozzle geometry is still not fully understood.The experimental study presented here seeks to ...

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  • [PDF] Effect of Nozzle Geometry on the Suction Flow Rate ...

    ABSTRACT Ejector is an equipment devised for making use of the low pressure occurring from the fast fluid injection and it is a transportation equipment which can obtain vacuum using the kinetic energy of the fluid. This ejector system is, nowadays, widely used for construction machinery, heavy equipments, the cooling and ventilation of electronic devices and for the various fluid ...

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  • Effect of nozzle geometry on heat transfer characteristics ...

    Abstract The paper reports results on the effects of nozzle geometry on local and average heat transfer distribution in unconfined air jet impingement on a flat plate. An infrared thermography camera is used to record the temperature distribution from isotherms on a uniformly heated impingement surface. Experiments have been conducted with variation of exit Reynolds number, Re, in the range of ...

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  • Effect of nozzle geometry on the gas dynamics and ...

    A fully structured 2-D axis-symmetric mesh is used to model the geometry. Fig. 1 (a), (b), (c) and (d) provides the dimensions for the nozzles. A description of the boundary conditions is given in Table 1 and Fig. 2, these conditions are within the range of typical operating conditions for a SHVOF thermal spray [].The gas phase is solved for using a QUICK scheme for the convective terms [5,16].

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  • [PDF] Effect of Fuel Nozzle Geometry on the Stability of ...

    An experimental assessment of the effect of fuel nozzle geometry on the stability of turbulent, nonpremixed methane flame is presented. The burner consists of a central fuel nozzle surrounded by an annulus of co-airflow. Four nozzles with different geometries having similar exit cross-sectional areas but different internal/orifice geometry (circular, rectangular, square and triangular) were ...

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  • Effects of axisymmetric sonic nozzle geometry on Mach disk ...

    Effect of axisymmetric sonic nozzle geometry on characteristics of supersonic air jet Journal of Thermal Science, Vol. 13, No. 2 An experimental study of underexpanded sonic, coaxial, swirl jets

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  • Effect of nozzle geometry on the performance of laser ...

    Nozzle geometry has obvious effect on the jet flow of high temperature and pressure produced by laser ablation, but less attention has been paid on it. Confined structure no matter cylindrical geometries [11, 12] or wedge nozzle can manipulate the momentum coupling coefficient, but it is still far from completely understood. The purpose of this ...

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  • (PDF) Effect of Internal Geometry of the Pressure-swirl ...

    PDF | On Jan 1, 2020, Reza Alidoost Dafsari and others published Effect of Internal Geometry of the Pressure-swirl Duplex Nozzle on the Atomization Characteristics of Jet …

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  • Effects of Nozzle Layout and Parameters on the Jet ...

    The application of CO 2 for converter steelmaking results in several beneficial effects. However, limited studies have investigated the influence of CO 2 and O 2 mixed injection on jet flow field and whether jet characteristics can be improved by changing the layout of nozzle holes. This study used FLUENT ® to simulate the jet distribution of the oxygen lance nozzle of a 120 t converter.

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  • TECHNICAL NOTE - Spray Nozzle

    The K factor is a unique constant for that particular nozzle which should be listed in the nozzle data table. For many nozzles n = 0.5 which means the quotation simply becomes This is commonly used to apply to all nozzles but it is in fact erroneous to do so for some nozzles. In particular non-spiral design full cone nozzles and wide angle full ...

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  • (PDF) Effect of nozzle geometry on pressure drop and heat ...

    Effect of nozzle geometry on pressure drop and heat transfer in submerged jet arrays ... Download Free PDF. ... Influence of the shape of the nozzle on local heat transfer distribution between smooth flat surface and impinging air jet. By Vadiraj Katti. Single-Phase Microscale Jet Stagnation Point Heat Transfer.

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  • Effect of Nozzle Geometry on the Space-Time Emission of ...

    The effect of small-sized conical reflectors on the screech emission of supersonic underexpanded jets was studied experimentally. The investigation focused on two closely spaced fully-expanded Mach numbers, 1.32 and 1.34, and included reflectors with four cone half angles, from 90 degrees to 60 degrees.

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  • Effect of axisymmetric sonic nozzle geometry on ...

    The effect of nozzle geometry on sonic line and characteristics of supersonic air jet was studied. Computational fluid dynamics was applied in this study. The axisymmetric nozzle geometries investigated were two different contour converging nozzles, two different conically converging sharp-edged nozzles and a sharp-edged orifice. The results show that the supersonic jet structure, sonic line ...

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  • The Effect of Nozzle Geometry on Pressure Drop and Heat ...

    Whelan, BP, & Robinson, AJ. 'The Effect of Nozzle Geometry on Pressure Drop and Heat Transfer to Free Surface Liquid Jet Arrays.' Proceedings of the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference.

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  • Effect of geometrical parameters of air-induction nozzles ...

    Effect of air induction nozzle (coarse droplet), air assistance and one-sided spraying of the outer tree row on spray drift in orchard spraying Annual review of agricultural engineering , 4 ( 1 ) ( 2005 ) , pp. 116 - 128

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  • An Investigation of the Inuence of Nozzle Aspect Ratio on ...

    proles, nozzle geometry, presence or absence of co-o w and presence or absence of side walls), very few of these initial conditions have been systematically assessed. Previous work has tested to some degree, the effect of nozzle geometry [1], effect of nozzle exit turbulence on jet spreading [2], effect

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  • Effect of nozzle geometry for swirl type twin-fluid water ...

    Experimental investigations on the atomization characteristics of twin-fluid water mist nozzle were conducted using particle image velocimetry (PIV) system and particle motion analysis system (PMAS). The twin-fluid water mist nozzles with swirlers designed two types of swirl angles such as 0°, 90° and three different size nozzle hole diameters such as 0.5mm, 1mm, 1.5mm were employed. The ...

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  • Effect of Geometry on the Performance of Intermingling Nozzles

    This study investigates the effect of nozzle geometry on the intermingling process. The dimensions of intermingling nozzles with single air inlets extended across the width of a rectangular yam channel are systematically varied. Nozzles with this cross-sectional shape prove to be easy to manufacture and efficient at intermingling.

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  • Experimental Study on Effects of Nozzle Hole Geometry on ...

    The effect of injection pressure was not significant at retarded injection timings, i.e., 5 ATDC. The convergent nozzle was found to produce higher soot emissions compared with the straight-hole nozzle under the same injection conditions. Effects of the convergent nozzle on NO x emissions and fuel consumption were not significant. The small ...

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  • HIGH-PRESSURE MIXING HEADS - KraussMaffei

    Depending on the nozzle used and the distance between mixing head and component, the width of the jet can vary with clearly defined spray limits and minimal overspray. – An air-supported round spray nozzle for creating a finer spray. This nozzle type is mainly used for components with complex geometries.

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  • The effect of nozzle geometry on the flow characteristics ...

    Results are presented of a wide-ranging investigation of geometry effects on the flow parameters and jet characteristics of nozzles with diameters between 120 and 170 μm. Nozzles with circular cross-section and conical, cone-capillary and capillary axial designs were investigated.

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  • Effect of Burner Geometry on the Blowout Limits of Jet ...

    The effects of changes in the jet nozzle geometry, i.e., nozzle shape and lip thickness, on the blowout limits of jet diffusion flames in a co-flowing air stream were experimentally investigated for a range of co-flow air stream velocities. Circular and elongated nozzles of different axes rations were employed.

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  • Experimental Study of the Effect of the Expansion Segment ...

    Experimental Study of the Effect of the Expansion Segment Geometry on the Atomization of a Plain-Jet Airblast Atomizer Yi Jin, Kanghong Yao , Xiaomin He , Kai Zhang, and Yunbiao Wang ... uid sheet are exposed to the air, and structure is complex. Plain-jet, which the fuel is not transformed into a thin sheet, ... nozzle geometry is the ...

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  • Effect of Geometry of Pressure-Swirl Duplex Nozzle and ALR ...

    Modern engines employ different geometrically designed nozzles. It is crucial to characterize the effect of the internal geometry of the nozzle and ALR on atomization characteristics. In this study, the effects of geometric parameters of the pressure-swirl duplex nozzle and ALR on the spray characteristics of Jet A-1 fuel were investigated.

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  • FLUID FLOW AND HEAT TRANSFER OF AN IMPINGING AIR JET

    Convective heat transfer to an impinging air jet is known to yield high local and area averaged heat transfer coe–cients. The current research is concerned with the mea-surement of heat transfer to an impinging air jet over a wide range of test parameters. These include Reynolds Numbers, Re, from 10000 to 30000, nozzle to impingement

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  • The Effects of Nozzle Diameter on Impinging Jet Heat ...

    This may be attributed to an increase in the jet momentum and turbulence intensity level with the larger nozzle diameter, which results in the heat transfer augmentation. In the mean time, the effect of the nozzle diameter on the local Nusselt numbers is negligibly small at the wall jet region corresponding to r d > 0.5.

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  • Effect of Nozzle Type and Abrasive on Machinablity in ...

    Micro abrasive jet machining (MAJM) is a high effective economical technology for three dimensional micro structure fabrications of brittle materials. It is widely used in the fabrication of semiconductors, electronic devices, micro electro-mechanical systems (MEMS), optical-electronic and optical devices, and medical instruments. In this paper, based on the experimental study of MAJM for ...

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  • DESIGN AND CFD ANALYSIS OF CONVERGENT AND DIVERGENT NOZZLE

    used nozzle since in using it the propellant can be heated incombustion chamber. In this project we designed a new Tri-nozzle to increase the velocity of fluids flowing through it. It is designed based on basic convergent-Divergent nozzle to have same throat area, length, convergent angle and divergent

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  • OPTIMIZATION OF A HIGH-EFFICIENCY JET EJECTOR BY ...

    A number of researchers made an effort to understand the effect of jet ejector geometry on jet ejector performance. For example, Kroll (1947) investigated the effect of convergence, divergence, length, and diameter of the throat section, nozzle position, induced fluid entrance, and motive velocity. Croft and Lilley (1976) investigated the

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  • BUILDING AIR INTAKE AND EXHAUST DESIGN

    UTDOOR air enters a building through its air intake to provide ventilation air to building occupants. Likewise, building ex-haust systems remove air from a building and expel the contaminants to the atmosphere. If the intake or exhaust system is not well de-signed, contaminants from nearby out door sources (e.g., vehicle ex-

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  • Nozzle geometry effects on supersonic jet interaction ...

    American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

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  • Effect of Varying Internal Geometry on the Static ...

    Effect of Varying Internal Geometry on the Static Performance of Rectangular v ... (when the jet flow is turned subsonically). Wind tunnel investigations of aircraft ... the nozzle internal geometry or duct geometry was rectangular in cross section. The flow path width was a constant 4.00 in.

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  • The effect of air swirl profile on the instability of a ...

    breakup process of the liquid jet is a ected by a large number of factors, including flow conditions, fluid properties and nozzle geometry (Lin & Reitz 1998). The various forces involved in the breakup process are inertial, surface tension, aerodynamic, centrifugal, and viscous. Some of the forces resist the disintegration process while ...

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  • Numerical investigation of the effect of geometry on the ...

    In this study, numerical simulations were carried out to determine the effects of area ratio, setback distance, mixing tube length, and shape of the driving nozzle on the performance of the jet pump. It was seen that major losses arise in the jet pump primarily due to an improper mixing of primary and secondary fluids and because of the ...

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  • Air Jet Weaving

    Air Jet Weaving - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. This paper talked about air jet weaving machine. Some of the pneumatic states are shown in this article.

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  • Dual-Mode Free-Jet Combustor

    Supersonic free-jet mode was analyzed in two separate CFD campaigns: 1) RANS with equilibrium chemistry for free-jet proof-of-concept Mach 5, 8, and 12 flight conditions Axial fuel injection through choked annular slots Effect of nozzle throat area Reported in 2010 AIAA paper 2) Time-accurate RANS with finite-rate chemistry to increase fidelity

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  • (PDF) SPUNLACE (Hydroentangled) Nonwoven Manufacture - an ...

    This type of nozzles is known as cone-down nozzle. Besides the cone- down nozzle there are cone-up and cylindrical nozzles available. Figure 3.11 shows the geometry of these three nozzles. It is of interest to know the discharge coefficient of the nozzles and the resulting break-up length of the jets.

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  • Analysis and Design of the Federal Aviation Administration ...

    • Nozzle spray – Identify key features of nozzle flow – Volume mapping of a nozzle spray, identify symmetry or asymmetry – Compare nozzles of same type and of different type – Determine optimal nozzle type, manufacturer, or seek to develop a new nozzle • Air flow – Visualization of the burner exit flow field in different planes

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  • EXPERIMENTAL ANALYSIS OF THE PERFORMANCE OF FRACTAL ...

    jet without any turbulator under the same condition of power input. A parametric study on the effect of the Reynolds number, the nozzle-to-plate distance and the position of the insert within the nozzle is carried out. The results show that a fractal turbulence promoter can provide a significant heat transfer

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  • Current Advances in Ejector Modeling, Experimentation and ...

    the injector by means of the liquid nozzle. Two nozzle arrangements can be found in the literature: vapor-central or liquid-central. In this figure the arrangement shown is a vapor-central nozzle and an annular outer liquid nozzle for illustration purposes. In the mixing section, vapor and liquid exchange heat, momentum and mass (due to

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  • Influence of Nozzle Geometry on the Noise of High-Speed ...

    American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

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  • EFFECT OF NOZZLE GEOMETRY ON THE ATOMIZATION AND SPRAY ...

    The nozzle aspect ratio has a more significant effect on the near-field jet stream characteristics for both fluids than the orifice inlet shape. Longer nozzles (l /d = 20) form more stable jet streams and delay the breakup of sheets, leading to greater breakup length than that attained with shorter nozzles (l /d = 5). For similar Reynolds ...

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  • EVALUATION OF BOATTAIL GEOMETRY AND EXHAUST PLUME ~'J ...

    number range. Configuration variables included nozzle boattail geometry and internal nozzle geometry. A cold jet and hot jet test technique was used to simulate and duplicate, respectively, the nozzle exhaust flow. High-pressure air served as the simulation fluid, and an air/ethylene combustor provided the means for duplicating the exhaust flow ...

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  • Influence of Nozzle geometry on spray shape, particle size ...

    THIESEL 2010 Conference on Thermo- and Fluid Dynamic Processes in Diesel Engines Influence of Nozzle Geometry on Spray Shape, Particle Size, Spray Velocity and Air Entrainment of High Pressure Diesel Spray C. Hespel1-2, J.B. Blaisot1, X Margot3, S. Patouna3,A. Cessou1, B. Lecordier1 1CORIA – UMR 6614, CNRS, Université et INSA de Rouen E-mail: [email protected]

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  • Experimental examination of nozzle geometry on water jet ...

    The effect of a nozzle’s internal geometry was studied experimentally to determine the breakup of the emitted water jet when it was injected perpendicularly into a quiescent atmosphere or a subsonic air crossflow. The nozzle’s diameter, nominal surface roughness, length-to-diameter ratio and contraction angle were varied, together with the ...

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  • Effect of a Wedge on Coannular Jet Noise

    2 The effect of the wedge is the focus of the present paper. The wedge cases tried in the UCI experiment were limited. There could be ma ny variations of the wedge geometry, e.g., half -angle, base width relative to nozzle perimeter, shape of the

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  • Numerical Investigation of Multijet Air Impingement on Pin ...

    nozzle plate. In this study the effect of nozzle jet exit velocity, heat sink array, and the height of pin fin on the average Nusselts number (Nu. a) are studied. Numerical investigation is carried out on multi air jet array of 3x3, 5x5 and 10x10(nozzle diameter 5, 3 and1.5mm) impinging on aluminum pin fin heat

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  • Mixing Process in a Lobed Jet Flow - Iowa State University

    Mixing Process in a Lobed Jet Flow HuiHu,¤Tetsuo Saga,†Toshio Kobayashi,‡and Nobuyuki Taniguchi§ University of Tokyo, Tokyo 153-8505, Japan A high-resolution stereoscopic particle image velocimetry(PIV)system was used to conduct three-dimensional measurement of an air jet exhausted from a lobed nozzle.

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  • Prediction of Fire Extinguishing Agent Concentration in ...

    agent jet flow from injection nozzle. • Accurate boundary conditions for all airflow sources. • Accurate geometry modeling inside engine core compartment. • Refined discretization of CFD mesh and computational time step in simulating agent jet flows during injection period. • Higher number density and poly-dispersed size groups in

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  • (PDF) SPUNLACE (Hydroentangled) Nonwoven Manufacture - an ...

    This type of nozzles is known as cone-down nozzle. Besides the cone- down nozzle there are cone-up and cylindrical nozzles available. Figure 3.11 shows the geometry of these three nozzles. It is of interest to know the discharge coefficient of the nozzles and the resulting break-up length of the jets.

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  • Metallurgical and Materials Transactions B, 2001, Vol. 32B ...

    effects of gas injection, slide-gate orientation, casting speed, gate opening, bubble size, port angle and port shape on the flow pattern and characteristics of the jet exiting the nozzle port. Argon gas injection bends the jet angle upward, enhances the turbulence level, and reduces the size of the back flow zone.

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  • An investigation of a mixer-ejector nozzle for jet noise ...

    An investigation of a mixer-ejector nozzle for jet noise reduction K.B.M.Q. Zaman1, J.E. Bridges 2, R.S. Castner3 and A.F. Fagan4 NASA Glenn Research Center Cleveland, OH 44135 Abstract An experimental study is conducted assessing the performance of an ejector together with an

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  • Numerical Investigation of Nozzle Jet Flow in a Pelton ...

    The characterization of flow through Pelton hydro turbines allows the optimization of their operation and maximization of energy performance. The flow in the injector of Pelton turbines and in the free jet area (the area from the injector outlet surface to the runner bucket inlet surface) is influenced by several parameters: the geometry of injector components (nozzle and injector spear), the ...

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  • Heat transfer characteristic of an impingement cooling ...

    Attalla M and Salem M 2013 Effect of nozzle geometry on heat transfer characteristics from a single circular air jet Appl. Therm. Eng. 51 723-733 Crossref Google Scholar [8]

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  • Ansys Nozzle Jet - cdn.app.jackwills.com

    Ansys Nozzle Jet jet a liquid c12 h23 as the fuel an air core at the center eddy dissipation method for combustion modeling the ... this analysis is totally depends on nozzle geometry and nozzle material is taken same for all cases this ... results show that nozzle length has an effect on the mixing of water air and the abrasives and that the

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  • Injector Geometry Effect on Plain Jet Airblast Atomisation ...

    Plain jet atomisation featuring coaxial air and fuel flows has been investigated to assess the injector geometry effect on the spray characteristics. Results from various flow conditions and atomiser configurations suggest that a prompt atomisation correlation that was evaluated for prefilming injectors can be applied to plain jet airblast ...

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  • Simulating the effect of in-nozzle cavitation on liquid ...

    Simulating the effect of in-nozzle cavitation on liquid atomisation using a three-phase model M.G. Mithun*,1, P. Koukouvnis1, I. K. Karathanassis1, M. Gavaises1 1City, University of London, UK Abstract The aim of this article is to present a fully compressible three-phase (liquid, vapour, air and mixture)

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  • SSRG International Journal of Mechanical Engineering (SSRG ...

    the subject. The geometry considered is that of a single circular jet impinging orthogonally onto a plane surface for nozzle to plate distance from 1.2 to 16 and calculated local heat transfer coefficient by k Jambunathan, etal [1]. Liquid crystals are used to investigate the effect of high relative curvature on

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  • TURBULENT FLOW OF LIQUID STEEL AND ARGON BUBBLES IN SLIDE ...

    nozzle port geometry (port angle and port shape) on the nozzle flow pattern and jet characteristics. All simulations focus on a typical new bifurcated nozzle with square ports and a condition of no clogging or erosion. The effect of clogging, including both initial clogging and severe clogging is investigated elsewhere[12]. II. COMPUTATIONAL MODEL

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  • (PDF) Computational fluid dynamic analysis and design ...

    Computers & Fluids 46 (2011) 212–217 Contents lists available at ScienceDirect Computers & Fluids j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m l o c a t e c o m p fl u i d Computational fluid dynamic analysis and design optimization of jet pumps J. Fan a,1, J. Eves a,⇑, H.M. Thompson a, V.V. Toropov a,b, N. Kapur a, D. Copley c, A. Mincher c a School of Mechanical ...

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  • Study of the Different Factors That Influence Jet Pump ...

    Suction head, driving air pressure and the percentage of the distance between throat section and nozzle are recorded. The effect of each parameter on the pump performance is investigated, in order to have a better understanding about the behavior of such pump under various conditions. A simple geometry jet pump was designed, developed and tested.

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  • Measurement of Air Entrainment During Pouring of an ...

    air is then driven into a collection bag by the pressure created by the volume of Fig. 2 CAD drawings of the (a) ladle and mold in the stand used for the water and aluminum experiments, and b close-up view of the nozzle geometry, with (c) an illustration of air entrainment via jet plunging into a mold with a sprue.

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  • Coanda effect in valves - pdfs.semanticscholar.org

    Coanda effect in some special cases which could occur in valves. 2 Coanda effect The Coanda effect is a phenomenon that was first observed in 1910 by Romanian mathematician and engineer Henri Coanda. He discovered that when air was ejected from a rectangular nozzle, it would attach itself to an inclined flat plate connected to the nozzle exit.

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  • TURBULENT FLOW OF LIQUID STEEL AND ARGON BUBBLES IN SLIDE ...

    nozzle port geometry (port angle and port shape) on the nozzle flow pattern and jet characteristics. All simulations focus on a typical new bifurcated nozzle with square ports and a condition of no clogging or erosion. The effect of clogging, including both initial clogging and severe clogging is investigated elsewhere[12]. II. COMPUTATIONAL MODEL

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  • Experimental Study of Air-Lift Pumps Characteristics

    the percentage of the distance between throat section and nozzle and the driving air pressure, suction head and also study the effect of each parameter on the air lift pump characteristics in order to have a better performance of such pump under various conditions. A certain geometry for air-lift pump designed and manufactured.

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  • Fuel Injection: Breaking Up is Hard to Do - Ansys

    effect on spray simulation. CFD simulation with LES has substantially improved engineers’ understanding of the fundamental physics of the primary breakup process and the impact of the nozzle geometry on spray structure. Delphi engineers are moving forward to incorporate simulation in the design process for fuel

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  • Encapsulation technologies A general overview

    Methods: droplet extrusion (single or multi nozzle device, simple gravity, spinning disk, jet breakage systems, co-extrusion) of a (bio)polymer solution in a gelation bath or in ambient/cold air Particles properties (standard): • Size range: from 50 µm to 7-8 mm • Final state: wet (can be dried or lyophilized)

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  • Influence of orifice geometry on atomization ...

    The nozzle B will reach the rated spray cone angle 66.92° at the pressure of 0.32 MPa, and the spray cone has basically been expended. Compared with nozzle B, the spray cones of nozzle A and C are expended inadequately which are much similar to that of semi bubble, and the spray cone angles are smaller by 4.3% and 7.7% respectively.

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  • (PDF) Modelling and Simulation of Supersonic Nozzle using ...

    The lesser effects of pressure of fluid flow which is The effect of pressure in the inlet is high with striking on the walls of nozzle. Fig. 9: Contours of Cell Reynolds number of nozzle 2.79e+05, then the pressure goes decreasing to the geometry.

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  • Microfluidic production of ultraso und contrast agents ...

    Microfluidic production of ultraso und contrast agents with a capillary gas jet PDMS microchip Chuanpin Chen a, Patrick W. Leech b, Yonggang Zhu* a, Richard Manasseh a aCSIRO Materials Science and Engineeri ng, PO Box 56, Highett, VIC 3190, Australia bCSIRO Materials Science and Engineering, Gate 5, Normanby Road, Clayton, VIC 3168, Australia ABSTRACT

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