Effect of Nozzle Geometry on Air-Jet Texturing PerformanceService-oriented

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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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  • Nozzle-geometry effects in liquid jet impingement heat ...

    1996-9-1 · Experiments were conducted to determine the effect of nozzle geometry (diameter and aspect ratio) on the local heat transfer coefficients from a small heat source to a normally impinging, axisymmetric, submerged and confined liquid jet of FC-77. A single jet with nozzle diameters in the range of 0.79–6.35 mm and up to seven different nozzle ...

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  • Effect of air-jet texturing on adhesion behaviour of ...

    2008-8-30 · The air-jet texturing turbulence in the nozzle disorientates the filaments, resulting a decrease in tenacity of the textured yarn. In addition to this, an excess yarn length due to yarn overfeed the individual filaments can form loops and therefore can be disorientated …

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  • Effect of air-jet texturing on adhesion behaviour of ...

    The effects of air-jet texturing on the adhesion of technical polyester yarns were discussed in terms of changes in the yarn geometry and changes on the single fiber surfaces.

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  • Influence of nozzle geometry on the near-field structure ...

    2008-2-1 · Addy (1981) carried out several experiments using different nozzle geometries to investigate the effects of this on the Mach disk of highly underexpanded sonic free jets. In the present study, the three types of nozzles previously employed in Addy's work have been adopted, as shown schematically in Fig. 3.N1 is a cylindrical straight nozzle of exit diameter D e and radius …

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  • Aerodynamic focusing of an abrasive air jet and its effect ...

    2019-8-1 · Three nozzles each with a rectangular opening of 0.3 × 3.8 mm (MB1500-32, Comco Inc., Burbank, CA, USA) were used as shown in Fig. 1, with the central nozzle creating the abrasive jet, and the other two creating the bounding air jets that focused the abrasive particles.The abrasive jet for all experiments was generated using an AccuFlo MicroBlaster (Comco Inc., Burbank, CA, …

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  • Effect of Injection Timing, Combustion Chamber Shapes and ...

    2014-12-25 · Effect of Injection Timing, Combustion Chamber Shapes and Nozzle Geometry on the Diesel Engine Performance Ranganatha Swamy L.1, T.K. Chandrashekar2, N.R. Banapurmath3, P.Nashipudi3 1Department of Mechanical Engineering, BGS Institute of Technology, BG Nagar, India 2Department of Mechanical Engineering, Mangalore Institute of Technology &

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  • Impact of Jet Reynolds Number and Feed Channel Geometry on ...

    2011-5-9 · the effect of inclination of an impinging air jet on heat transfer characteristics. Roy and Patel [7] studied the effect of jet angle impingement on local Nu and nozzle to target plane spacing at different Re. Ekkad et al [8] studied the effect of impinging jet angle ±45 on target surface by using transient liquid crystal

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  • (PDF) Air-jet texturing of filament feed yarns of ...

    Air-jet texturing is a unique and purely mechanical texturing method that produces entangled filament bulked yarns of low extensibility with the use of cold supersonic airstream.

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  • (PDF) Effect of Swirl Chamber Length on the Atomization ...

    The current experimental study aims to investigate the effect of flare geometry and swirl ratio on the Coanda effect of a small size in-house designed triple swirler Pre-filming air-blast nozzle.

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  • Effect of injector geometry on the performance of an ...

    2010-11-1 · The air injection holes were provided circumferentially along two rows, 3 mm apart, as shown in Fig. 1. Several injectors, with different geometry, were fabricated and tested to study the effect of injector geometry on the performance of the injector. The geometric details of the injectors investigated in this study are presented in Table 1.

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  • The potential of UHP and waterjets for additive manufacturing

    2020-9-24 · using a specially-shaped orifice geometry. These are typically either metallic or diamond, Hashish 2015. Mixing air with waterjets in a specially designed nozzle results in a waterjet-air jet (WAJ) that has surface preparations effects such as cleaning and peening as will be discussed later. Figure 1 shows these tools.

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  • Savvy Separator: The Effect of Inlet Geometries on Flow ...

    2015-7-31 · If an unprotected pressure tap is located opposite of an inlet nozzle as shown, the fluid momentum itself will provide a false reading. Fig. 5a shows the effect on re-entrainment by a flush nozzle as described earlier compared with a vane-type inlet device (Fig. 5b) that reduces the velocity. Only air is flowing, and the rate was the same in ...

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  • The influence of air duct geometry on air jet direction in ...

    The geometry of main distribution duct with sufficient level of detail should be included in the geometry of CFD model, because direction of air jets generated by air ... Other. The influence of air duct geometry on air jet direction in aircraft cabin ventilated by mixing ventilation.

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  • Numerical simulation of effect of nozzle layout on jet lateral ...

    2016-7-18 · Numerical simulation of effect of nozzle layout on jet lateral control for missiles LIU Liyuan 1, LI Yachao 2, YAN Chao 1 1. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China ...

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  • EFFECT OF THERMODYNAMIC PARAMETERS AND GEOMETRY

    Thus, turbulence model (K-ε) was incorporated in the present study, and also a round nozzle is considered as its inlet corner has the potential for flow separation. Further numerical study was carried out to investigate the effect of various thermodynamics parameters and nozzle geometry.

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  • A New Approach to Determination of the Instability of Air ...

    2021-7-9 · Air-Jet Texturing of the Yarns . Air-jet texturing of the filaments was carried out on a SSM Stähle RM3-T machine, with the following parameters: 250 m/min texturing speed, Hemajet A347 type of nozzle, 0.8 MPa air pressure. The filaments were fed to the machine as single end method with two different overfeeds (15%, 30%).

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  • Influence of Process Parameters and Geometry of the ...

    Influence of the process parameters and geometry of the spraying nozzle on the properties of titanium deposits obtained in wire arc spraying. Wire arc spraying is a process in which through minor modifications of the spray parameters, they can have a major impact on the coatings properties. In this paper there is presented a study on the influence of process parameters and …

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  • Studying the Effect of the Air-Cap Configuration in Twin ...

    Abstract The computational fluid dynamics approach is adopted in this work using the design of experiments to reveal the effect of the air-cap configurations on the obtained gas velocity, the shear stresses, the high velocity zone, and the convergence of the obtained spraying plume in the twin-wire arc-spraying process. The parameters, which are revealed to optimize the air-cap …

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  • Effect of air baffle design on mottle in solvent coatings ...

    1996-6-25 · What is claimed is: 1. Apparatus for drying coated web material comprising a nozzle, means for supplying air to the nozzle and means to distribute the air through said nozzle substantially uniformly across the web, said nozzle arcing from a position substantially perpendicular with respect to the plane of the web to a position substantially parallel with respect …

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  • Effects of nozzle geometry on parallel injection into a ...

    2019-12-18 · into the jet flow with an angle of 135 deg from the nozzle wall, the angle shown to have the greatest mixing effect.17 The elliptic nozzle had a semimajor axis of 6.15 mm and a semiminor axis of 2.05 mm, resulting in an AR of 3:1 and an equivalent diameter of 3.55 mm for a circular nozzle of the same cross-sectional area.

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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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  • (PDF) Influence of Nozzle Configuration on the flow field ...

    The effect of nozzle configuration on the jet flow field is discussed with predicted mean flow and turbulent flow data. Near field of multiple jets shows non-linear behavior. Multiple jets show better performance in the near field based on entrainment, secondary flows and …

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  • Indian Journal of Fibre - 14.139.47.11

    Stress-strain characteristics of air-jet textured polyester yarns . R S Rengasamy, V K Kothari & Asis Patnaik [IPC Code: Int. Cl 7. D02G 3/22, D06H 3/00] 283. Migratory behaviour of core and sheath fibres in dref-III friction-spun acrylic yarns. S Dhamija, S Sambari & R Chattopadhyay [IPC Code: Int. Cl 7. D02G 3/00] 290

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  • A1 Air-Jet - DORNIER GmbH, Lindauer - PDF Catalogs ...

    FILLING INSERTION DORNIER AIR-JET FILLING INSERTION: EXTREMELY POWERFUL AND SECURE Thanks to the reliability of its unique filling insertion controlled through the patented DORNIER PIC® system with DORNIER ServoControl®-2 in combination with the proven shed geometry of the DORNIER rapier weaving machine and a long insertion window, the DORNIER A1 air-jet opens up new dimensions for air-jet …

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  • Y' RESEARCH MEMORANDUM - NASA

    2020-8-6 · to determine the effect of two convergent ejector-type nozzles with secondary weight flow ratios up to 0.36 on the drag of a 160 conical afterbody. The nozzles had ratios of secondary exit diameter to primary exit diameter of 1.1 and 1.377 and spacing ratios ranging from 0 to 1.6. Primary jet pressure ratios for these nozzles ranged from 2 to 8.

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  • On the Structure of an Impact Jet with Flow Swirling and ...

    2020-7-24 · Abstract The PIV and PLIF OH techniques were used to experimentally study the structure of a jet impinging on a flat obstacle with swirling and combustion of a propane–air mixture with an equivalence ratio of 0.7 for a nozzle–obstacle distance H/d = 1 and 3 and in the absence of the obstacle. The swirl ratio was 0.41 and 1.0, and the Reynolds number was 5 000. It is …

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  • Numerical characterization of transient two-phase flow of ...

    2020-5-21 · The injector body is of micro-sac type, and a segmental geometry of injector (1:6) is chosen for highly transient cavitation flow. The length-to-diameter ratio of the nozzle is 4 where its length is 0.96 mm and the curvature-to-diameter ratio is r/d = 0.02.As illustrated in Fig. 1, the symmetrical wall boundary condition is used due to the symmetrical nature of the fluid flow to …

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  • (PDF) EXPERIMENTAL STUDY OF HIGH HEAT REMOVAL BY

    This Experimental Study utilizes the multi-jet impingement technique to investigate the thermal performance of pin fin heat sink under unconfined and semi confined conditions. In the present Experimental investigates the effect of Aluminum Heat sink,

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  • Japanese Journal of Applied Physics, Volume 44, Part 1 ...

    The effect of diffraction on the optical performance of high-resolution liquid-crystal-on-silicon devices is investigated. The light efficiencies are simulated with respect to the pixel pitch for the vertically aligned and finger-on-plane modes. Computer simulation results indicate that the effect of diffraction on these devices is significant.

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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 ...

    Get Price
  • (PDF) Impact of Process Parameters and Nozzle Design on ...

    Principle of air-jet texturingThe processes of air-jet texturing are illustrated schematically in figure 1; When overfed (V 1 > V 2 ) filaments enter the texturing nozzle, they are carried along through the nozzle, blown out from the texturing end, and are formed into loops which are mutually trapped in the yarn structure by the effect of the ...

    Get Price
  • Effect of air-jet texturing on adhesion behaviour of ...

    2008-8-30 · Since air-jet texturing is a fully mechanical process no change of the type of the bonds between rubber and yarn is expected. Therefore, the improvement of the adhesion has been attributed to two reasons below: 1. Changes on the fiber surface due to air-jet texturing. 2. Changes of the yarn geometry due to air-jet texturing.

    Get Price
  • (PDF) Effect of Nozzle Type and Abrasive on Machinablity ...

    The nozzle geometry is of great importance for machining accuracy and the efficiency. ... crystals using an abrasive air jet is presented. The effect of the processing parameters on the produced ...

    Get Price
  • (PDF) Fluid Simulation of the Airflow in Texturing Jets

    2002-6-1 · A new cost-effective nozzle that can produce good quality commingled yarns at low air pressure is introduced. 3D CFD simulation and experimental studies are conducted to investigate the effect of ...

    Get Price
  • Investigation of air-jet texturing of technical polyester ...

    The effects of air-jet texturing on the adhesion of technical polyester yarns were discussed in terms of changes in the yarn geometry and changes on the single fiber surfaces.

    Get Price
  • (PDF) Air-jet texturing of filament feed yarns of ...

    Air-jet texturing is a unique and purely mechanical texturing method that produces entangled filament bulked yarns of low extensibility with the use of cold supersonic airstream.

    Get Price
  • The Mechanism of the Air-Jet Texturing: The Role of ...

    An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Both air-jet and steam-jet textured yarns were …

    Get Price
  • Development of an instrument to study shrinkage properties ...

    2013-12-21 · use of water during the air-jet texturing process is found to increase the shrinkage in the resultant air-jet textured yarns. Keywords: Air-jet texturing, Partially oriented yarn, Polyester IPC Code: Int. Cl. 7 D02J 1/00, D06C27/00

    Get Price
  • The Fundamentals of Air-Jet Texturing - 1library.net

    The most widely quoted general description of the process is from Acar [16]. It has been reproduced below. “ When the overfed filaments enter the texturing nozzle, they are carried

    Get Price
  • The Role of Nozzle-Exit Conditions on the Flow Field of a ...

    2013-12-30 · prescribed nozzle-exit conditions on flow characteristics using the case of a plane jet. One particular free shear flow chosen to study the effects of nozzle-exit conditions is a plane jet. The jet is generated by a slender nozzle measuring w × h where w and h are oriented along the spanwise (z) and lateral (y) coordinates. The flow

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  • Performance Analysis and Geometrical Design of Spiral ...

    2021-4-19 · The structural parameter of spiral groove has a great influence to spiral-grooved thrust bearing. Unsuitable value of spiral groove will lead to the poor hydrodynamic performance of spiral-grooved thrust bearing, namely vibration, …

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  • Fluorescence Imaging Study of Impinging Underexpanded Jets

    2020-8-6 · inches. The taps were oriented in a vertical plane (the plane of the laser sheet), on the jet centerline. From the camera’s viewing angle, the jet flow was from left to right. Figure 1. PLIF system and experimental hardware. Gas is plumbed through a heated plenum and nozzle into a vacuum chamber. A laser sheet

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  • Modelling of jet noise: a perspective from large-eddy ...

    2019-10-14 · The effect of the jet nozzle was emulated [5,6] using Reynolds-averaged Navier–Stokes (RANS) calculation of the flow through the nozzle to generate quasi-realistic jet mean flow profiles near the nozzle exit. The turbulence resolving simulations started with the emulated mean flow seeded with perturbations using various approaches aiming to ...

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  • 7 3 33742 - ntrs.nasa.gov

    2020-8-6 · effects on jet exhaust noise due to a wing are made for the various nozzle geometries tested. APPARATUS Acoustic Test Stand Free jet.- An outdoor 13-inch diameter free jet (fig- 3) was used to simulate forward velocity. For this rig, dry cold air (at about 520° R) was supplied to a 16-inch diameter gate valve from the Center's 125 psig air ...

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  • 3D Measurements of the Geometry, Internal Flow and ...

    Measurements of the nozzle geometry reveal that the radius of curvature of the inlet corner varies significantly ... been found to have a strong impact on the external fuel distributionand fuel and air mixing [1-4]. However, there ... grade Spray C injector has a single hole oriented along the injector’s axis. The injector is designed to promote

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  • Drawing & Texturising Process

    2018-12-5 · Air jet Texturising: In this method of texturing, yarns led through the turbulent region of a air jet at a rate faster than if is drawn off on the far side of the jet, in the jet, the yarn structure is opened , loops are locked inside and others are locked on the surface of the yarn. An example of this method is the taslam process; Air jet ...

    Get Price
  • ALPINE AIR JET SIEVE e200 LS - Hosokawa Alpine

    2021-5-18 · sieve, the air jet sieve is the device of choice for sieving fine powders. This is where the air jet sieve e200 LS develops maximum effectiveness. Not just one, but two compo-nents work together here: a slotted nozzle which rotates inside the sieving chamber and an industrial vacuum cleaner connected up to the sieving chamber.

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  • Leonardo ORAZI - personale UniMore - pubblicazioni

    The uniformity of the exit jet pattern in high pressure gas-assisted laser cutting represents the main feature in order to achieve high cutting quality and capability. Therefore, the effect of both inlet stagnation pressure and nozzle geometry on the behavior of the exit jet …

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  • The impact of methane oxidation kinetics on a rocket ...

    2020-9-16 · researchesandisproblem-oriented.Itmeansthatthemechanismob-tainedusingthismethod,insomeways,isalways“fitted”(ortuned)for ... The contour of the nozzle replicates the nozzle geometry of project LUMEN [39]. The structured two-dimensional (2D) numerical grid ... equations and thus makes possible to estimate the effect of reaction ...

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  • Mixing studies of helium in air at high supersonic speeds ...

    2012-5-17 · Mixing studies of helium in air at high supersonic speeds. ... Effect of fuel-jet injection angle variation on the overall performance of a SCRAMJET engine. ... Effects of nozzle geometry on parallel injection from the base of an extended strut into a supersonic flow.

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  • Experimental and numerical investigations of jet active ...

    2015-7-31 · experimentally and numerically, the effects of forcing on the aerodynamic field in a model configuration : a non-reactive jet of air. The actuators are designed to modify the flow in two ways (figure 1) : a radial fluid injection into the main jet enhances its mixing with the ambient air …

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  • Effects of modification on jet mixing of sword alternating ...

    2013-11-5 · The effects of scalloping and scarfing on jet mixing of sword alternating lobed nozzle were investigated by numerical method. The results show that when the degree of scalloping or scarfing enhanced, the mixing in the downstream region of the lobe peak is accelerated, however the center primary flow needs a longish journey to be mixed.

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  • A review on nozzle wear in abrasive water jet machining ...

    2018-7-8 · A review on nozzle wear in abrasive water jet machining application H. Syazwani1, G. Mebrahitom, A. Azmir 1Faculty of Manufacturing Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia . E-mail :[email protected], [email protected], [email protected] . Abstract.This paper discusses a review on nozzle wear in abrasive water jet …

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  • Effect of Spraying Pressure on Spray Cooling Enhancement ...

    2017-1-23 · a water jet beneath liquid sprayers [1]. Besides nozzle’s geometrical characteristics, the equation obtained took into consideration two essential parameters, spraying pressure and nozzle height. A numerical simulation is performed to investigate the effect of water-spray characteristics for the removal of heat

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  • Polymers for Melt Electrowriting - Kade - 2021 - Advanced ...

    This EHD effect that prevents Plateau–Rayleigh instabilities allows the nozzle flow rate to be substantially reduced for MEW. [5, 13] Additionally, the comparable high viscosity and low conductivity of melt fluids support the control and stability of the jet.[5, 13-15] This in combination with the controllable collector plate, allows the defined deposition of the jet, which starts to ...

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  • The impact of methane oxidation kinetics on a rocket ...

    2020-9-16 · researchesandisproblem-oriented.Itmeansthatthemechanismob-tainedusingthismethod,insomeways,isalways“fitted”(ortuned)for ... The contour of the nozzle replicates the nozzle geometry of project LUMEN [39]. The structured two-dimensional (2D) numerical grid ... equations and thus makes possible to estimate the effect of reaction ...

    Get Price
  • any medium, provided the original work is properly cited ...

    the radially oriented jet at the top, the subsequent flow phases are schematically shown. The oil-jet impacts on the gear flank, which is associated with a strong deformation of the jet tip. Then, the oil on the gear flank forms an oil film that spreads towards …

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  • Numerical analysis of the NO and O generation mechanism in ...

    2014-6-24 · The paper also contains a sensitivity study on the effect of ambient air humidity, total power deposition and gas temperature along the plasma jet effluent. In addition, we demonstrated in [ 6 ] by comparing with experimentally obtained values (through UV absorption spectroscopy) that our model correctly describes the ozone density along the ...

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  • Indian Journal of Fibre - 14.139.47.11

    Stress-strain characteristics of air-jet textured polyester yarns . R S Rengasamy, V K Kothari & Asis Patnaik [IPC Code: Int. Cl 7. D02G 3/22, D06H 3/00] 283. Migratory behaviour of core and sheath fibres in dref-III friction-spun acrylic yarns. S Dhamija, S Sambari & R Chattopadhyay [IPC Code: Int. Cl 7. D02G 3/00] 290

    Get Price
  • (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 ...

    Get Price
  • (PDF) Impact of Process Parameters and Nozzle Design on ...

    Principle of air-jet texturingThe processes of air-jet texturing are illustrated schematically in figure 1; When overfed (V 1 > V 2 ) filaments enter the texturing nozzle, they are carried along through the nozzle, blown out from the texturing end, and are formed into loops which are mutually trapped in the yarn structure by the effect of the ...

    Get Price
  • Effect of air-jet texturing on adhesion behaviour of ...

    2008-8-30 · Since air-jet texturing is a fully mechanical process no change of the type of the bonds between rubber and yarn is expected. Therefore, the improvement of the adhesion has been attributed to two reasons below: 1. Changes on the fiber surface due to air-jet texturing. 2. Changes of the yarn geometry due to air-jet texturing.

    Get Price
  • (PDF) Effect of Nozzle Type and Abrasive on Machinablity ...

    The nozzle geometry is of great importance for machining accuracy and the efficiency. ... crystals using an abrasive air jet is presented. The effect of the processing parameters on the produced ...

    Get Price
  • (PDF) Fluid Simulation of the Airflow in Texturing Jets

    2002-6-1 · A new cost-effective nozzle that can produce good quality commingled yarns at low air pressure is introduced. 3D CFD simulation and experimental studies are conducted to investigate the effect of ...

    Get Price
  • Investigation of air-jet texturing of technical polyester ...

    The effects of air-jet texturing on the adhesion of technical polyester yarns were discussed in terms of changes in the yarn geometry and changes on the single fiber surfaces.

    Get Price
  • (PDF) Air-jet texturing of filament feed yarns of ...

    Air-jet texturing is a unique and purely mechanical texturing method that produces entangled filament bulked yarns of low extensibility with the use of cold supersonic airstream.

    Get Price
  • The Mechanism of the Air-Jet Texturing: The Role of ...

    An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Both air-jet and steam-jet textured yarns were …

    Get Price
  • Development of an instrument to study shrinkage properties ...

    2013-12-21 · use of water during the air-jet texturing process is found to increase the shrinkage in the resultant air-jet textured yarns. Keywords: Air-jet texturing, Partially oriented yarn, Polyester IPC Code: Int. Cl. 7 D02J 1/00, D06C27/00

    Get Price
  • The Fundamentals of Air-Jet Texturing - 1library.net

    The most widely quoted general description of the process is from Acar [16]. It has been reproduced below. “ When the overfed filaments enter the texturing nozzle, they are carried

    Get Price
  • Some influence factors in aerodynamic heat transfer ...

    2015-6-9 · Abstract: When simulate the aerothermal environment of thrust jet and its interaction flow on an engineering vehicle geometry, people always use some approximate modeling to the full chemical reaction flow,then the influence to the simulation results of an approximate treatment for real gas and the modification to internal geometry of the thruster nozzle must to be manifested.

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  • Application of Laser Diagnostics to a Green Manufacturing ...

    2013-3-27 · scale model. Specifically, the objective is to quantify the turbulence intensity present in the air jet at the nozzle exit and downstream. In addition to serving as boundary conditions for the large-scale model, these experimentally measured quantities provide significant insight into the dynamics of jets produced with different geometry nozzles.

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  • Combined Effects of Wakes and Jet Pulsing on Film Cooling

    2021-7-19 · In the present study, the effects of pulsed jets and wakes on film cooling are combined. Experiments were conducted in a flat plate facility with a single row of five streamwise oriented round holes inclined at 35 deg to the surface and spaced 3D apart. The geom-etry has been used in many studies including Bons et al. 18 ,

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  • On the effect of active flow control on the meandering of ...

    2020-6-8 · Margaris & Gursul (Reference Margaris and Gursul 2006) conducted a particle image velocimetry (PIV) investigation of the effect of synthetic jet (SJ) actuation on a tip vortex using a wing equipped with several blowing slot geometries placed at different positions around the tip region. They found that the introduction of SJ actuation led to a ...

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  • Experiments and Large-Eddy Simulations of Lobed and ...

    2019-6-20 · diffusers for heating, ventilation, air conditioning (HVAC) systems using different jet geometries, in order to improve the users’ thermal comfort. Three free jets of air diffusers emitted from a tubular lobed, with six and five lobes, and from a swirl nozzle have been both studied experimentally and numerically. All diffusers have

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  • M. Monno, C. Ravasio - Politecnico di Milano, Italy

    2021-8-6 · The effect of cutting head vibrations on the surfaces generated by waterjet cutting M. Monno, C. Ravasio - Politecnico di Milano, Italy ... geometry of the cut front, has been developed and a range of moving steps on the cut ... The vibrations on the workpiece caused by the jet, which interacts in air with the workpiece, the equipment and the ...

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  • Effect of air baffle design on mottle in solvent coatings ...

    1996-6-25 · What is claimed is: 1. Apparatus for drying coated web material comprising a nozzle, means for supplying air to the nozzle and means to distribute the air through said nozzle substantially uniformly across the web, said nozzle arcing from a position substantially perpendicular with respect to the plane of the web to a position substantially parallel with respect …

    Get Price
  • A Century of Ramjet Propulsion Technology Evolution ...

    2012-5-23 · A Century of Ramjet Propulsion Technology Evolution. On the numerical simulation of thermal decomposition of hydrocarbon mixtures in channels of cooling systems of high-speed vehicles. Optimization of the fuel composition. Unified Analysis of Internal Flowfield in an Integrated Rocket Ramjet Engine.

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  • Drawing & Texturising Process

    2018-12-5 · Air jet Texturising: In this method of texturing, yarns led through the turbulent region of a air jet at a rate faster than if is drawn off on the far side of the jet, in the jet, the yarn structure is opened , loops are locked inside and others are locked on the surface of the yarn. An example of this method is the taslam process; Air jet ...

    Get Price
  • (PDF) SPUN YARN TECHNOLOGY

    Academia.edu is a platform for academics to share research papers.

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