PDF The effect of nozzle geometry on air-jet texture

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance

    '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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  • The Effect of Nozzle Geometry on the Noise of High

    2018-2-17 · In order to facilitate the research, an air-jet texturing nozzle with a rectangular cross section has been developed. The texturing performance of the nozzles is assessed by means of process observations and on-line measurement of stabilizing zone tension, and also by measuring the in creased linear density of the yams on textured yarn samples.

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  • Influence of Nozzle geometry on spray shape, particle

    2018-2-17 · 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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  • Experimental Study of the Effect of the Expansion

    2021-4-23 · 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 ... nozzle geometry is the important factor to spray perfor- ... [10], and the liquid postrecess in the air nozzle …

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  • EVALUATION OF BOATTAIL GEOMETRY AND EXHAUST

    2015-12-31 · (air/ethylene combustion) jet test techniques were used to simulate and duplicate, respectively, the nozzle exhaust flow for a sonic jet installatlon. Nozzle exhaust temperature was varied from 540 to approximately 2,900OR. The most significant results pertain to those effects on boattail pressure drag caused by exhaust plume

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

    2011-9-2 · 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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  • Influence of liquid hydrophobicity and nozzle passage ...

    2015-5-20 · workers focused on the influence of the ink-jet print head geometry, the diameter of the nozzle exit, amplitude and frequency of electrically driven signals, and liquid properties, density, viscosity and surface tension on the drop formation, but little is known about the effect of the wetting condition

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  • Effect of Jet Shape on Flow and Torque Characteristics of ...

    2015-1-31 · penstock. The shape of jet affects the force and torque on the bucket and runner of turbine. The nozzle of circular cross section is commonly used. In this paper attempt has been made to study the effect of four different jet shapes on the flow and torque characteristics of Pelton turbine runner through numerical simulation.

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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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  • DESIGN AND CFD ANALYSIS OF CONVERGENT AND

    2017-9-25 · 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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  • THRUST VECTORING NOZZLE FOR MILITARY AIRCRAFT

    2013-1-3 · Nozzles. The ITP Nozzle is a 3-D Vectoring Nozzle. Also, there are different ways to achieve the deflection of the gas jet: the most efficient one is by mechanically deflecting the divergent section only, hence minimizing the effect on the engine upstream of the throat (sonic) section. The ITP concept consists of a patented design featuring

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

    2021-8-3 · nozzle geometry and size nozzle configuration location of exhaust ports nozzle to target spacing surface motion and operating variables such as cross flow and jet axis velocity complicate the analysis Experimental and Numerical Computational Fluid Dynamics April 29th, 2019 - consists of the nozzle with spear and jet 14 The jet is designed in ...

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

    2021-5-13 · 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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  • MElinoRAMD - NASA

    2020-8-6 · nozzle which subsequently was flight tested. This nozzle was mounted on a cylindrical jet-exit model in the Lewis 8- by 6-Foot Supersonic Wind Tunnel, Testing was con- ducted over a range of Mach numbers from 0 to 1.95. Variations were made in the pri- mary flap and nacelle geometries to determine the effect on nozzle performance. Ln ad-

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  • Influence of liquid hydrophobicity and nozzle passage ...

    2015-5-20 · workers focused on the influence of the ink-jet print head geometry, the diameter of the nozzle exit, amplitude and frequency of electrically driven signals, and liquid properties, density, viscosity and surface tension on the drop formation, but little is known about the effect of the wetting condition

    Get Price
  • Effects of the size of the measured surface on the ...

    measured surface on the performance of an air-jet sensor using 2-0 finite element method. The modeling and experimental results have shown that in the measuring range of 1.5 mm to 4.5 mm with a nozzle of diameter of 6 mm, the output of the cone-jet is not significantly affected by …

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  • A Numerical Investigation of Ignition of Ultra-Lean ...

    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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  • ABSTRACT Title of Document: SPRAY FLAME AND

    2017-10-5 · The primary objective of this study is to understand the effect of nozzle geometry on the ultra-lean ignition limit of H. 2 /air. This knowledge is crucial to explain how supersonic nozzles can extend the lean flammability limit compared to straight nozzles. The initial and geometric conditions used for the numerical simulations are

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  • Jet Impingement Heat Transfer: Physics, Correlations, and ...

    2021-5-13 · The nozzle sits downstream of the power turbine. A nozzle is a relatively simple device, just a specially shaped tube through which hot gases flow. However, the mathematics which describe the operation of the nozzle takes some careful thought. As shown above, nozzles come in a variety of shapes and sizes depending on the mission of the aircraft.

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  • On the mixing of a rectangular jet

    2016-3-29 · submerged conditions. A centrally-located fuel nozzle, which uses air-assist atomization, creates a methanol fuel spray. This approach provides great control over fuel spray properties in a compact geometry. Factors affecting the structure of the flames, including the effect of the central atomization air jet, are investigated using three ...

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  • DESIGN AND CFD ANALYSIS OF CONVERGENT AND

    2011-5-31 · The same air canbe routed to a perforated internal wall to form ... The jet emerges from a nozzle or opening with a velocity and temperature profile and turbulence characteristics dependent upon the upstream flow. For a pipe-shaped nozzle, also called a tube nozzle ... effect of the wall upstream. The nonuniform turning flow experiences high

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  • Influence of liquid hydrophobicity and nozzle passage ...

    2015-5-20 · workers focused on the influence of the ink-jet print head geometry, the diameter of the nozzle exit, amplitude and frequency of electrically driven signals, and liquid properties, density, viscosity and surface tension on the drop formation, but little is known about the effect of the wetting condition

    Get Price
  • MElinoRAMD - NASA

    2020-8-6 · nozzle which subsequently was flight tested. This nozzle was mounted on a cylindrical jet-exit model in the Lewis 8- by 6-Foot Supersonic Wind Tunnel, Testing was con- ducted over a range of Mach numbers from 0 to 1.95. Variations were made in the pri- mary flap and nacelle geometries to determine the effect on nozzle performance. Ln ad-

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  • Unraveling the Geometry Dependence of In-Nozzle

    2013-6-25 · Download PDF. Introduction. ... To illustrate the sole effect of the nozzle geometry, ... therefore exerting much lower stress than air would on the liquid jet, similar to the effect of a partial ...

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

    2004-7-27 · The overall effect of the lobed nozzle on the mixing process was evaluated by analyzing the ... wise vortices produced by the special geometry of the lobed mixer. ... Fig. 1 Lobed nozzle and air jet experimental rig. were divided into two streams; one is used to seed the core jet ‘ ow ...

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  • Nozzles - NASA

    2021-5-13 · The nozzle sits downstream of the power turbine. A nozzle is a relatively simple device, just a specially shaped tube through which hot gases flow. However, the mathematics which describe the operation of the nozzle takes some careful thought. As shown above, nozzles come in a variety of shapes and sizes depending on the mission of the aircraft.

    Get Price
  • Effect of Jet Shape on Flow and Torque Characteristics of ...

    2015-1-31 · penstock. The shape of jet affects the force and torque on the bucket and runner of turbine. The nozzle of circular cross section is commonly used. In this paper attempt has been made to study the effect of four different jet shapes on the flow and torque characteristics of Pelton turbine runner through numerical simulation.

    Get Price
  • THRUST VECTORING NOZZLE FOR MILITARY AIRCRAFT

    2013-1-3 · Nozzles. The ITP Nozzle is a 3-D Vectoring Nozzle. Also, there are different ways to achieve the deflection of the gas jet: the most efficient one is by mechanically deflecting the divergent section only, hence minimizing the effect on the engine upstream of the throat (sonic) section. The ITP concept consists of a patented design featuring

    Get Price
  • Effect of linear density of feed yarn filaments and air ...

    2016-7-20 · Yarn linear density per filament and air-jet texturing process parameters, such as overfeed, air pressure and texturing speed are the key factors which influence yarn structure and hence fabric properties. The individual effect of feed yarn properties and air-jet process variables in the production of air-jet

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  • DESIGN AND CFD ANALYSIS OF CONVERGENT AND

    2017-9-25 · 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

    Get Price
  • A Brief Review on Design and Operation Principle for ...

    pressure nozzle Liquid turbulence and attenuation effect of the tangential velocity component of the liquid in a centrifugal or swirl-type nozzle leads to atomization. The atomization conditions of the centrifugal type nozzle depend on the magnitude of the angular or swirling velocity of the water. After leaving the orifice, water forms an air cone

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