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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 with circular ...

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  • Modelling the influence of the nozzle geometry on the ...

    2021-7-8 · the nozzle with the spray atomization properly. Different turbulent and cavitating conditions inside the injection holes subsequently result in different spray structures and cone angles near the nozzle exit. 1.1. Specific objectives and simulation approach The objective of this paper is to investigate the effect the nozzle geometry has on the

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  • The effect of frontal nozzle geometry and gas pressure on ...

    2013-4-15 · Through the graphic representation of the velocity variation of compressed air jet inside the model — Fig. 3a, it has been found that there is a zone where the gas velocity is the maximum symbolically named high speed zone — HSZ. Download : Download high-res image (268KB) Download : Download full-size image Fig. 3. The variation of the gas jet velocity for p 1 = 4 bar, p 2 = 5 bar; a) the ...

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  • IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 32, NO. …

    2019-4-29 · In this experimental work, the geometrical effects of anode nozzle on air entrainment for the nontransferred plasma torch are examined. And, for the purpose of determination of nozzle geometry suitable for producing high quality coatings, the char-acteristics of plasma jets produced by the stepped and cylin-drical nozzles are measured.

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  • Experimental Study of the Effect of the Expansion …

    2021-4-23 · quality [7]. Eroglu et al. investigated the effects of atomizer geometry and ambient back pressure on the intact liquid lengths of sprays using photographic experiments. The results show that when the ambient pressure is 0.1MPa, the nozzle geometry is the important factor to spray perfor-mance.Whentheambientisupto3MPa,thereisnoconnec-

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  • Influence of nozzle area ratio on the gas-particle flow ...

    2020-4-30 · In this paper, a numerical study was performed to examine the effect of divergent nozzle length of single-hose dry ice blasting on the development of acoustic power level. The active working medium is the mixture of solid dry ice particles and compressible air fluid at the inlet section. The two-dimensional planar model was solved using the finite volume method. The model has been verified ...

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  • Numerical and experimental study of the influence of ...

    2018-12-1 · The air-jet nozzle consists of different components. For the air suction channel, there are fibers inlet and outlet, and main and sub holes. Fig. 19 shows the structure of air jet nozzle profile. The structures of the nozzle, such as the diameters of the main and sub-holes, the number of sub-holes and angles of sub-holes (θ), have significant ...

    Get Price
  • Influence of inlet pressure and geometric variations on ...

    2021-4-16 · Primary nozzle geometry, position and corresponding influence on performance (critical back pressure, entrainment ratio, pressure distribution, etc) were studied by Ariafar & Toorani (2012), Behtash et al. (2011), Sharifi & Sharifi (2013), Seckin (2018), Xu et. al. for application in the refrigerant system and air-jet …

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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

    Get Price
  • (PDF) Optimizing Replaced Nozzle Diameter of Abrasive ...

    2020-6-4 · The blasting technique has been broadly utilized to prepare new surfaces for painting, engraving, etc., in industry. In fact, the minimization of the cleaning cost system is essential.

    Get Price
  • (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 with circular ...

    Get Price
  • Modelling the influence of the nozzle geometry on the ...

    2021-7-8 · the nozzle with the spray atomization properly. Different turbulent and cavitating conditions inside the injection holes subsequently result in different spray structures and cone angles near the nozzle exit. 1.1. Specific objectives and simulation approach The objective of this paper is to investigate the effect the nozzle geometry has on the

    Get Price
  • The effect of frontal nozzle geometry and gas pressure on ...

    2013-4-15 · Through the graphic representation of the velocity variation of compressed air jet inside the model — Fig. 3a, it has been found that there is a zone where the gas velocity is the maximum symbolically named high speed zone — HSZ. Download : Download high-res image (268KB) Download : Download full-size image Fig. 3. The variation of the gas jet velocity for p 1 = 4 bar, p 2 = 5 bar; a) the ...

    Get Price
  • IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 32, NO. …

    2019-4-29 · In this experimental work, the geometrical effects of anode nozzle on air entrainment for the nontransferred plasma torch are examined. And, for the purpose of determination of nozzle geometry suitable for producing high quality coatings, the char-acteristics of plasma jets produced by the stepped and cylin-drical nozzles are measured.

    Get Price
  • Experimental Study of the Effect of the Expansion …

    2021-4-23 · quality [7]. Eroglu et al. investigated the effects of atomizer geometry and ambient back pressure on the intact liquid lengths of sprays using photographic experiments. The results show that when the ambient pressure is 0.1MPa, the nozzle geometry is the important factor to spray perfor-mance.Whentheambientisupto3MPa,thereisnoconnec-

    Get Price
  • Influence of nozzle area ratio on the gas-particle flow ...

    2020-4-30 · In this paper, a numerical study was performed to examine the effect of divergent nozzle length of single-hose dry ice blasting on the development of acoustic power level. The active working medium is the mixture of solid dry ice particles and compressible air fluid at the inlet section. The two-dimensional planar model was solved using the finite volume method. The model has been verified ...

    Get Price
  • Numerical and experimental study of the influence of ...

    2018-12-1 · The air-jet nozzle consists of different components. For the air suction channel, there are fibers inlet and outlet, and main and sub holes. Fig. 19 shows the structure of air jet nozzle profile. The structures of the nozzle, such as the diameters of the main and sub-holes, the number of sub-holes and angles of sub-holes (θ), have significant ...

    Get Price
  • Influence of inlet pressure and geometric variations on ...

    2021-4-16 · Primary nozzle geometry, position and corresponding influence on performance (critical back pressure, entrainment ratio, pressure distribution, etc) were studied by Ariafar & Toorani (2012), Behtash et al. (2011), Sharifi & Sharifi (2013), Seckin (2018), Xu et. al. for application in the refrigerant system and air-jet …

    Get Price
  • 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

    Get Price
  • (PDF) Optimizing Replaced Nozzle Diameter of Abrasive ...

    2020-6-4 · The blasting technique has been broadly utilized to prepare new surfaces for painting, engraving, etc., in industry. In fact, the minimization of the cleaning cost system is essential.

    Get Price
  • Shi, Z., Chen, J., You, R., Chen, C., and Chen, Q. 2016 ...

    2016-6-24 · 1 Modeling of Gasper-Induced Jet Flow and Its Impact on Cabin Air Quality Zhu Shi1, Jun Chen1, Ruoyu You1, Chun Chen2 and Qingyan Chen1,3 1 School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA 2 Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T. 999077, Hong Kong SAR, China

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  • Active control of jet mixing - Miroslav Krstic

    2005-2-1 · jet exhaust mixing is used to reduce thermal stresses [9]. Many different techniques have been studied to amplify or to excite the unstable modes of a jet flow to increase the mixing quality. Several configurations of static tabs at the jet nozzle exit have been experimentally and numerically examined [2]. Non-circular jets have also received

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  • [PDF] An Analytical Investigation Of The Effect Of Nozzle ...

    The study considers the effect of complete rounding of the throat (on both the subsonic and supersonic sides), up to a radius of cruvature equal to three throat heights. Such rounding allows easier manufacture and alignment of the nozzles, and should result in improved flow quality.

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  • Effect of Process Parameters and Shot Peening on the ...

    2019-10-17 · Effect of Process Parameters and Shot Peening on the Tensile Strength and Deflection of ... The sample geometry is provided in Fig. 4. ... peened with glass beads from 10 to 25 passes in increments of 5 passes at a constant maximum air pressure of 85 psi with the gun nozzle one inch from surface.

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  • CFD Based Erosion Modelling of Abrasive Waterjet …

    2016-3-11 · the effect of erosion rate on the wall of AWJ nozzle with varying parameters of abrasive shape factor, and abrasive mass flow. The two phase discrete phase method (DPM) will be used for solving multiphase flow of water, air and abrasives particle. 2. Assumptions and theoretical formulation

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  • Reduced span spray: Part 3: Design of a narrow span nozzle

    2016-6-28 · the choice of mirror nozzle to generate a homogeneous radial flow. The 140° geometry presents a more homogenous flow rate distribution than the 180° geometry for the 1 and 2 l/min cases. The increase of flow rate produces antagonist effects for each geometry. The 140° case, the flow is

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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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  • & Aeros Journal of Aeronautics & Aerospace El-Zahaby …

    2019-2-15 · mesh quality of minimum orthogonal quality equal to 8.04913e-01 and maximum aspect ratio equal to 2.50071e+01(according to Fluent mesh quality indicator [20]. While the cells close to primary nozzle, walls and mixing section is dense enough to solve the complex flow phenomenon at each. Secondly, in order to predict better the internal flow status,

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  • THE EFFECT OF DEINKING AND BINDER TYPE ON INKJET …

    2020-11-10 · a nozzle via piezoelectric motion in a closed chamber (Figure 1). Inkjet ink consists of a solute dissolved or otherwise dispersed in solvent (Tekin et al, 2008). The ink inside the continuously moving print head ejects a fixed amount of ink out of the nozzle due to the shock effect …

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  • Horizontal two-phase jet behavior with an annular nozzle ...

    Understanding jet behaviors is essential for predicting many processes of practical importance. The objective of this study is to investigate horizontal air–water jet behavior with an annular nozzle ejector in a shallow water tank and to present the effect of overall jet behavior on oxygen transfer characteristics from air bubbles to water.

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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 with circular ...

    Get Price
  • Modelling the influence of the nozzle geometry on the ...

    2021-7-8 · the nozzle with the spray atomization properly. Different turbulent and cavitating conditions inside the injection holes subsequently result in different spray structures and cone angles near the nozzle exit. 1.1. Specific objectives and simulation approach The objective of this paper is to investigate the effect the nozzle geometry has on the

    Get Price
  • The effect of frontal nozzle geometry and gas pressure on ...

    2013-4-15 · Through the graphic representation of the velocity variation of compressed air jet inside the model — Fig. 3a, it has been found that there is a zone where the gas velocity is the maximum symbolically named high speed zone — HSZ. Download : Download high-res image (268KB) Download : Download full-size image Fig. 3. The variation of the gas jet velocity for p 1 = 4 bar, p 2 = 5 bar; a) the ...

    Get Price
  • IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 32, NO. …

    2019-4-29 · In this experimental work, the geometrical effects of anode nozzle on air entrainment for the nontransferred plasma torch are examined. And, for the purpose of determination of nozzle geometry suitable for producing high quality coatings, the char-acteristics of plasma jets produced by the stepped and cylin-drical nozzles are measured.

    Get Price
  • Experimental Study of the Effect of the Expansion …

    2021-4-23 · quality [7]. Eroglu et al. investigated the effects of atomizer geometry and ambient back pressure on the intact liquid lengths of sprays using photographic experiments. The results show that when the ambient pressure is 0.1MPa, the nozzle geometry is the important factor to spray perfor-mance.Whentheambientisupto3MPa,thereisnoconnec-

    Get Price
  • Influence of nozzle area ratio on the gas-particle flow ...

    2020-4-30 · In this paper, a numerical study was performed to examine the effect of divergent nozzle length of single-hose dry ice blasting on the development of acoustic power level. The active working medium is the mixture of solid dry ice particles and compressible air fluid at the inlet section. The two-dimensional planar model was solved using the finite volume method. The model has been verified ...

    Get Price
  • Numerical and experimental study of the influence of ...

    2018-12-1 · The air-jet nozzle consists of different components. For the air suction channel, there are fibers inlet and outlet, and main and sub holes. Fig. 19 shows the structure of air jet nozzle profile. The structures of the nozzle, such as the diameters of the main and sub-holes, the number of sub-holes and angles of sub-holes (θ), have significant ...

    Get Price
  • Influence of inlet pressure and geometric variations on ...

    2021-4-16 · Primary nozzle geometry, position and corresponding influence on performance (critical back pressure, entrainment ratio, pressure distribution, etc) were studied by Ariafar & Toorani (2012), Behtash et al. (2011), Sharifi & Sharifi (2013), Seckin (2018), Xu et. al. for application in the refrigerant system and air-jet …

    Get Price
  • 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

    Get Price
  • (PDF) Optimizing Replaced Nozzle Diameter of Abrasive ...

    2020-6-4 · The blasting technique has been broadly utilized to prepare new surfaces for painting, engraving, etc., in industry. In fact, the minimization of the cleaning cost system is essential.

    Get Price
  • PAPER OPEN ACCESS Related content A review on …

    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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  • 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 ...

    Get Price
  • One-dimensional Model of an Optimal Ejector and …

    2014-4-15 · One-dimensional Model of an Optimal Ejector and Parametric Study of Ejector Efficiency Ronan K. McGoverna, Kartik V. Bulusub, Mohammed A. Antarc and John H. Lienhard Vd a Massachusetts Institute of Technology, Cambridge, MA, U.S.A., [email protected] b The George Washington University, Washington D.C., U.S.A., [email protected] c King Fahd University of …

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  • Numerical simulation for optimizing the nozzle of moist ...

    The nozzles of moist-mix shotcrete are the key parts of forming a steady jet flow field and ensuring the uniform mixing of water and other ingredients. In this paper, for optimizing the nozzle of moist-mix shotcrete, both the internal and external field of a variety of spray nozzles were simulated and analyzed by adopting orthogonal test method with Fluent simulation software combined.

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  • The cooling process in gas quenching

    2012-5-28 · Journal of Materials Processing Technology 155–156 (2004) 1881–1888 The cooling process in gas quenching N. Liora,b,∗ a Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, 297 Towne Building, 220 South 33rd …

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  • Effect of Process Parameters and Shot Peening on the ...

    2019-10-17 · Effect of Process Parameters and Shot Peening on the Tensile Strength and Deflection of ... The sample geometry is provided in Fig. 4. ... peened with glass beads from 10 to 25 passes in increments of 5 passes at a constant maximum air pressure of 85 psi with the gun nozzle …

    Get Price
  • Comparative Studies on Various Turbulent Models with ...

    Supersonic flows associated with missiles, aircraft, missile engine intake and rocket nozzles are often steady. In this present work, the computational analysis was conducted on C-D (convergent –divergent) nozzle for understanding the flow regime with various flow properties such as velocity and various turbulent models (spalert almaras, K-ε and K-ω).

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  • A Numerical Study on the Supersonic Steam Ejector Use in ...

    2013-2-13 · Supersonic steam ejector is widely used in steam energy systems such as refrigeration, wood drying equipment, papermaking machine, and steam turbine. In this paper the Computational Fluids Dynamics (CFD) method was employed to simulate a supersonic steam ejector, SST k-w turbulence model was adopted, and both real gas model and ideal gas model for fluid property were considered …

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  • Stagnation pressure effect on the supersonic minimum ...

    Then, the PG and HT models make a default design of the nozzle that will influence the flow quality and the physical interpretation of actual flow behaviour. Figures 6 and 10 show the effect of T 0 respectively on the shape of the axisymmetric and 2D MLN, determined by our RG model when P …

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  • CGTrader - 3D Models for VR / AR and CG projects

    3D Services for the Enterprise. We can turn any number of products (SKUs) into photorealistic 3D models for e-Commerce and other business applications. We can do the AR implementation for you. More sales conversions, less product returns. Quality ensured with stringent QA.

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