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  • A Review on Effect of Nozzle Hole Geometry on the ...

    nozzle geometry with 5 hole having an orifice diameter of 0.3 mm. That may be due to atomization, spray characteristics and mixing with air were better, resulting in improved combustion. The BTE was found to be 28.5% at 80% load and its maximum value obtained with 5 hole nozzle at an injection opening pressure of 205 bar.

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

    2012-4-10 · of the throat s ection [7]. In this stud y, the effects of nozzle geometry with. varios operating condi tions on the performanc e …

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  • EFFECTS OF GEOMETRY ON THE PERFORMANCE OF SWIRL NOZZLE G ...

    Placing a swirl nozzle composed of a yarn channel and an air-jet nozzle in a traditional ring spinning frame can reduce yarn hairiness. In this study, two types of swirl nozzles, namely, the circular swirl nozzle and the elliptical swirl nozzle, are designed to optimize the inside structure of the swirl nozzle and improve the yarn quality. Yarn performance is evaluated based on the hairiness ...

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  • Effect of nozzle shape on jet impingement heat transfer ...

    For orifice type nozzles, some researchers have studied the effect of the different contours of the orifice as shown in Fig. 1(b) , , , or the shape of the orifice such as circular, rectangular or elliptical , , , , .Obot et al. considered both sharp edged and contoured nozzles, for Re d ranging from 15,000 to 60,000. They found considerable effect of nozzle shape on heat transfer for h/d less ...

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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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  • Effect of Burner Geometry on Heat Transfer Characteristics ...

    An experimental investigation is carried out on an inverse diffusion flame (IDF) burners having central air jet and being surrounded by fuel jets for an impingement heat transfer. A thorough investigation has been performed to study the effects of the diameter of air jet, orientation of fuel jets and swirl in the central air jet on an inverse diffusion flame shapes, mainly on heat transfer ...

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  • Study on Heat Transfer during Rectangular Slot Air Jet ...

    Finally, the pressurized air goes through the rectangular slot nozzle and generates the slot jet. The flow rates were measured directly from the rotameter. Two dimensional slot nozzle with 3 mm width and an aspect ratio of 21:1 to produce uniform velocity profile at its exit is used for the study. According to the hydraulic diameter of the ...

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  • EFFECT OF COLLAR AND BEVEL ANGLE IN MIXING ENHANCEMENT OF ...

    the nozzles under considerations were a beveled nozzle, a nozzle with six chevrons and a six lobed Elliptic Sharp Tipped Shallow (ESTS) nozzle, and compared the results with reference nozzle of conical shape. The jet from bevel nozzle has its mixing characteristics modified due to the prevailing azimuthal asymmetry.

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  • Effects of Exit Geometry on Turbulent Mixing in Supersonic ...

    Turbulent Jet Entrainment is important in understanding the nature of volcanic jets. The e ect of nozzle exit shape is studied on four di erent kinds of supersonic free jets. A very strong in uence of nozzle exit shape is seen in the near eld of the jet, where the complex nozzles show high rates of entrainment.

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  • A RESEARCH PAPER ON ANALYSIS OF DE-LAVAL NOZZLE ON ANSYS ...

    nozzle decides the measure of push delivered by the nozzle. In fig. 1[a], [b] shown use of CD nozzle in jet engine to boosting the thrust output. [6-8] Fig: 1 [a] worked on “Design and fluid flow analysis of ConvergentApplication of CD nozzle in Jet engine, [b] Application of bell shape nozzle.

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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 NOZZLE GEOMETRY ON THE EFFICIENCY OF COMPRESSED ...

    properties, the most efficient nozzle was the one for which the mass flow rate of compressed air was the lowest. All nozzles showed comparable mass flow rates for the same impact force and the difference was in the order of 5% better than a straight pipe geometry. Only the energy saving nozzle used around 10%

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  • Effect of nozzle geometry on the efficiency of compressed ...

    All nozzles showed comparable mass flow rates for the same impact force and the difference was in the order of 5% better than a straight pipe geometry. Only the energy saving nozzle used around 10% less mass flow and is the best solution to reduce compressed air consumption without losing performance. en_ZA. dc.description.librarian.

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  • ICME 94-CFD Analysis of Multijet Air Impingement on Flat ...

    The effects of nozzle geometry, jet-to-surface spacing, jet-to-jet spacing, cross flow, operating conditions, etc. on flow and heat ... India [email protected] Most industrial applications of impinging jets are concerned with turbulence flow in the whole domain ... heat sink with air jet impingement through array of nozzles.

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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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  • EFFECTS OF GEOMETRY ON THE PERFORMANCE OF SWIRL NOZZLE G ...

    Placing a swirl nozzle composed of a yarn channel and an air-jet nozzle in a traditional ring spinning frame can reduce yarn hairiness. In this study, two types of swirl nozzles, namely, the circular swirl nozzle and the elliptical swirl nozzle, are designed to optimize the inside structure of the swirl nozzle and improve the yarn quality. Yarn performance is evaluated based on the hairiness ...

    Get Price
  • Study on Heat Transfer during Rectangular Slot Air Jet ...

    Finally, the pressurized air goes through the rectangular slot nozzle and generates the slot jet. The flow rates were measured directly from the rotameter. Two dimensional slot nozzle with 3 mm width and an aspect ratio of 21:1 to produce uniform velocity profile at its exit is used for the study. According to the hydraulic diameter of the ...

    Get Price
  • Effects of Exit Geometry on Turbulent Mixing in Supersonic ...

    Turbulent Jet Entrainment is important in understanding the nature of volcanic jets. The e ect of nozzle exit shape is studied on four di erent kinds of supersonic free jets. A very strong in uence of nozzle exit shape is seen in the near eld of the jet, where the complex nozzles show high rates of entrainment.

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  • STUDY OF DECAY CHARACTERISTICS OF RECTANGULAR AND ...

    The nozzle exit geometry factors like hydraulic diameter (D h) and shape factor ( ζ) were governed by exit geometry shape. The aspect ratio of characteristic major to mi-nor dimensions was 2:1 for rectangular and elliptical shaped nozzles. The nozzle exit geometry shapes are shown in fig. 3.

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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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  • NUMERICAL AND EXPERIMENTAL INVETIGATIONS OF THE NOZZLE ...

    College of Engineering, Trivandrum Thiruvananthapuram, Kerala,695016 India VSSC, ISRO, Thiruvananthapuram,Kerala,695022 India ABSTRACT Effective mixing of two supersonic streams in a short mixing chamber is a major challenge. Active and passive methods are used to enhance the mixing. Nozzle geometry, different nozzle configurations a

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  • Nozzles - NASA

    Most modern passenger and military aircraft are powered by gas turbine engines, which are also called jet engines. There are several different types of gas turbine engines, but all turbine engines have some parts in common. All gas turbine engines have a nozzle …

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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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  • 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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  • EFFECT OF THERMODYNAMIC PARAMETERS AND GEOMETRY ON THERMAL ...

    Indian Institute of Technology Bombay, Mumbai, Maharashtra, 400076, India ... Further numerical study was carried out to investigate the effect of various thermodynamics parameters and nozzle geometry. Separation of the flow was observed at the nozzle inlet similar to cavitation, resulting in the formation of vapor. ... It is also observed that ...

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  • Unraveling the Geometry Dependence of In-Nozzle Cavitation ...

    To illustrate the sole effect of the nozzle geometry, we chose two axisymmetric, single-orifice, high-pressure diesel nozzles with a subtle yet distinctive difference in feature: one had a rounded ...

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  • Numerical Simulations of the Effect of Cold Fuel ...

    Numerical Simulations of the Effect of Cold Fuel Temperature on In-Nozzle Flow and Cavitation Using a Model Injector Geometry 2020-01-2116 In the present study, Large Eddy Simulations (LES) have been performed with a 3D model of a step nozzle injector, using n -pentane as the injected fluid, a representative of the high-volatility components in ...

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  • Effect of chevron nozzle penetration on aero-acoustic ...

    Effect of chevron nozzle penetration on aero-acoustic characteristics of jet at M = 0.8. ... These streamwise vortices enhance the mixing between co-axial streams of the hot jet from the nozzle and cold air from the turbofan. If also provided at the trailing edge of the engine nacelle, chevrons enhance the mixing of the ambient air …

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  • Effect of blow parameters in the jet penetration by ...

    It is important to know about the bath behavior to reduce the blow time and splashing in top of the converter. The target of this work is to compare works on the effect of twisted nozzle, flow and lance height in the jet penetration by visual inspection and by energy balance that consider number of nozzles, vertical and twist angles.

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  • Structure Optimization and Numerical Simulation of Nozzle ...

    Three kinds of nozzles normally used in industrial production are numerically simulated, and the structure of nozzle with the best jetting performance out of the three nozzles is optimized. The R 90 nozzle displays the most optimal jetting properties, including the smooth transition of the nozzle’s inner surface. Simulation results of all sample nozzles in this study show that the helix ...

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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 ...

    Get Price
  • Nozzle geometry variations on the discharge coefficient ...

    Based upon the computed results, the nozzle geometry has significant influences on the discharge coefficient, profile of sonic lines and on the nozzle downstream flow features. Jet boundaries, shear layers and lengths of supersonic core of jets were investigated to clarify the performance of nozzles on the downstream flows. 2.

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  • Unraveling the Geometry Dependence of In-Nozzle Cavitation ...

    To illustrate the sole effect of the nozzle geometry, we chose two axisymmetric, single-orifice, high-pressure diesel nozzles with a subtle yet distinctive difference in feature: one had a rounded ...

    Get Price
  • Advances in Mechanical Engineering 2019, Vol. 11(5) 1–15 ...

    and air into the combustor without any premixing. Since the fuel and air are not premixed, the perfor-mance of LDI heavily depends upon the design of the air swirler.14 Dunand et al.15 experimentally investigated the influence of a swirling annular gas jet, momentum flux ratio, and surrounding pressure on the breakup and atomization of liquid jet.

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  • STUDY OF DECAY CHARACTERISTICS OF RECTANGULAR AND ...

    The nozzle exit geometry factors like hydraulic diameter (D h) and shape factor ( ζ) were governed by exit geometry shape. The aspect ratio of characteristic major to mi-nor dimensions was 2:1 for rectangular and elliptical shaped nozzles. The nozzle exit geometry shapes are shown in fig. 3.

    Get Price
  • A RESEARCH PAPER ON ANALYSIS OF DE-LAVAL NOZZLE ON ANSYS ...

    nozzle decides the measure of push delivered by the nozzle. In fig. 1[a], [b] shown use of CD nozzle in jet engine to boosting the thrust output. [6-8] Fig: 1 [a] worked on “Design and fluid flow analysis of ConvergentApplication of CD nozzle in Jet engine, [b] Application of bell shape nozzle.

    Get Price
  • CFD ANALYSIS OF AN AIRCRAFT AND FLOW OPTIMIZATION OF A ...

    nozzle. Her results depicted higher exit velocity and higher degree of flow separation with contour nozzles compared to corresponding conical nozzles. Ahmed H. Osman [3] interpreted the CFD simulation of De Laval nozzle geometry and effect of gas pressure variation at the entrance. He

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  • PUBLICATIONS OF DIMITRI PAPAMOSCHOU

    Papamoschou, D., and Shupe, R.S.., 'Effect of Nozzle Geometry on Jet Noise Reduction Using Fan Flow Deflectors,' AIAA-2006-2707, 12th AIAA/CEAS Aeroacoustics Conference, May 8-10, 2006, Cambridge, MA.

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

    Indian Journal of Fibre & Textile Research Vol. 41, March 2016, pp. 47-54 Effect of linear density of feed yarn filaments and air-jet texturing process variables on compressional properties of woven fabrics R K Baldua, R S Rengasamy & V K Kotharia Department of Textile Technology, Indian Institute of Technology, New Delhi 110 016, India

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  • Design and Simulation of an Ejector as an Expansion Device ...

    two phase flow ejector motive nozzle, suction nozzle and diffuser are the main parts. Objective of the ejector design is to determine all diameters and length of these sections this ejector. By using Henry and Fauske model (Henry and Fauske, 1971) we will determine the motive nozzle throat diameter is designed.

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  • Advances in Mechanical Engineering 2019, Vol. 11(5) 1–15 ...

    and air into the combustor without any premixing. Since the fuel and air are not premixed, the perfor-mance of LDI heavily depends upon the design of the air swirler.14 Dunand et al.15 experimentally investigated the influence of a swirling annular gas jet, momentum flux ratio, and surrounding pressure on the breakup and atomization of liquid jet.

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

    Indian Journal of Fibre & Textile Research Vol. 41, March 2016, pp. 47-54 Effect of linear density of feed yarn filaments and air-jet texturing process variables on compressional properties of woven fabrics R K Baldua, R S Rengasamy & V K Kotharia Department of Textile Technology, Indian Institute of Technology, New Delhi 110 016, India

    Get Price
  • STUDY OF DECAY CHARACTERISTICS OF RECTANGULAR AND ...

    The nozzle exit geometry factors like hydraulic diameter (D h) and shape factor ( ζ) were governed by exit geometry shape. The aspect ratio of characteristic major to mi-nor dimensions was 2:1 for rectangular and elliptical shaped nozzles. The nozzle exit geometry shapes are shown in fig. 3.

    Get Price
  • Influence of tab geometry and its orientation on under ...

    The effect of tab geometry and its orientation placed at the nozzle exit on the evolution of an axi-symmetric sonic under-expanded and fully expanded jet was investigated experimentally. The tab used was a hollow semi-circular tube.

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  • Influence of nozzle configuration on the flow field of ...

    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 the nonlinear behavior. Multiple jets show better performance in the near-field based on entrainment, secondary flows, and area-averaged turbulent kinetic energy.

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  • PUBLICATIONS OF DIMITRI PAPAMOSCHOU

    Papamoschou, D., and Shupe, R.S.., 'Effect of Nozzle Geometry on Jet Noise Reduction Using Fan Flow Deflectors,' AIAA-2006-2707, 12th AIAA/CEAS Aeroacoustics Conference, May 8-10, 2006, Cambridge, MA.

    Get Price
  • Development of Pelton turbine using numerical simulation

    of air and water) and free surface in nature. Numerical calculation is useful to understand flow physics as well as effect of geometry on flow. The optimized design is obtained using in-house special optimization loop. Either single phase or two phase unsteady numerical calculation could be performed.

    Get Price
  • (PDF) IMPACT OF VARYING THE NOZZLE STAND - OFF DISTANCE ON ...

    This is 10-15% more than 30mm nozzle stand-off distance. 2. When Nozzle has been placed at 15mm stand-off distance then the cutting temperature is 5-8% more than 30mm nozzle stand-off distance. 3. The influence of nozzle stand-off is nearly equal to the influence speed rate on cutting temperature during more than 30mm stand-off distance. 4.

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  • Design and Optimization of Flow Field of Tangentially ...

    A hot jet in the cold surrounding spreads faster than a cold jet in the same surrounding. For any downstream axial distance, the maximum velocity is at the centre and minimum at the periphery such that a parabolic is developed as shown in Fig.2 Figure 2. Jet dynamics from the burner as nozzle Table 2: Burner velocity arrangement

    Get Price
  • Design and Simulation of an Ejector as an Expansion Device ...

    two phase flow ejector motive nozzle, suction nozzle and diffuser are the main parts. Objective of the ejector design is to determine all diameters and length of these sections this ejector. By using Henry and Fauske model (Henry and Fauske, 1971) we will determine the motive nozzle throat diameter is designed.

    Get Price
  • P Received 20 December - NOPR: Home

    2.2 Design and Fabrication of Air-jet Nozzle An air-jet nozzle for cone winding machine has been designed and fabricated in the laboratory. The basic geometry of the air-jet nozzle is shown in Fig. 1. It consists of two components, i.e. vortex assembly (dotted portion) and outer assembly (shaded portion).

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  • Design of piston bowl geometry for better combustion in ...

    of air and fuel and can control the turbulence level. A small change in the piston bowl geometry has an effect on the swirl ratio and turbulence intensity. The W-shaped bowl produces more swirl and turbulence at top dead centre (TDC) position as compared to flat piston bowl geometry. Prasadetal[11]studiedthree-dimensionalCFDsimulations

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

    Indian Journal of Fibre & Textile Research Vol. 41, March 2016, pp. 47-54 Effect of linear density of feed yarn filaments and air-jet texturing process variables on compressional properties of woven fabrics R K Baldua, R S Rengasamy & V K Kotharia Department of Textile Technology, Indian Institute of Technology, New Delhi 110 016, India

    Get Price
  • Influence of nozzle configuration on the flow field of ...

    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 the nonlinear behavior. Multiple jets show better performance in the near-field based on entrainment, secondary flows, and area-averaged turbulent kinetic energy.

    Get Price
  • Development of Pelton turbine using numerical simulation

    of air and water) and free surface in nature. Numerical calculation is useful to understand flow physics as well as effect of geometry on flow. The optimized design is obtained using in-house special optimization loop. Either single phase or two phase unsteady numerical calculation could be performed.

    Get Price
  • A Cascade Air Sampler with Multi-nozzle Inertial Filters ...

    ABSTRACT We applied a 3-nozzle geometry to the inertial filter unit of a previously developed cascade air sampler, which originally consisted of a 4-stage (PM10/2.5/1/0.5) impactor, and an inertial filter unit embedded in a single circular nozzle (for PM0.1), and compared its performance against that of a single-nozzle inertial filter unit. The multi-nozzle design enabled the collection of ...

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  • Variable Geometry Turbochargers - DieselNet

    Effect of variable geometry turbine nozzle opening and blade speed ratio on turbine efficiency Applications of Variable Geometry Turbochargers Improving Low Engine Speed Boost. Figure 4 illustrates how a variable geometry …

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  • Design and Simulation of an Ejector as an Expansion Device ...

    two phase flow ejector motive nozzle, suction nozzle and diffuser are the main parts. Objective of the ejector design is to determine all diameters and length of these sections this ejector. By using Henry and Fauske model (Henry and Fauske, 1971) we will determine the motive nozzle throat diameter is designed.

    Get Price
  • ALPINE AIR JET SIEVE e200 LS - Amazon Web Services

    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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  • Converging Diverging Nozzle - Virginia Tech

    To get a basic feel for the behavior of the nozzle imagine performing the simple experiment shown in figure 2. Here we use a converging diverging nozzle to connect two air cylinders. Cylinder A contains air at high pressure, and takes the place of the chamber. The CD nozzle exhausts this air into cylinder B, which takes the place of the tank.

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  • Effect of the Inlet Geometry on the Flow and Heat Transfer ...

    Transient infrared thermography is used for mapping the temperatures over the surface, and the heat transfer coefficients are estimated using a semi-infinite approximation methodology. Results show that, for circular jets, the effect of the jet diameter on the local and the spanwise-averaged Nusselt number is most pronounced near the jet exit.

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  • (PDF) IMPACT OF VARYING THE NOZZLE STAND - OFF DISTANCE ON ...

    This is 10-15% more than 30mm nozzle stand-off distance. 2. When Nozzle has been placed at 15mm stand-off distance then the cutting temperature is 5-8% more than 30mm nozzle stand-off distance. 3. The influence of nozzle stand-off is nearly equal to the influence speed rate on cutting temperature during more than 30mm stand-off distance. 4.

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  • International Journal of Engineering Trends and Technology ...

    nozzle jet ejector and is as follows A. Experimental set up 1. The experimental Setup for industry scale jet ejector is shown schematically in Figure 2. concentration and gas concentration. The results are compiled. Fig. 1 Detail of the jet ejector used in experimental setup These experiments were conducted on industrial stage

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  • Numerical Simulation of Dual-Mode Scramjet Combustor with ...

    the facility nozzle so that proper boundary layer is accounted at combustor entry to predict the upstream interaction in dual mode combustion system. In this present work, dual-mode scram-jet experimental study of Chinzei et al. (1993) is thermo-chemically explored to understand the effect of simple H 2-air kinetics and combustor

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  • Flash Atomization: A New Concept to Control Combustion ...

    The next task investigates the effects of air blast on the effervescent atomization process. An air nozzle is positioned perpendicular to the water injection in order to enhance atomization. Figures 10(c) and 10(d) compare the nozzle discharge with the air-jet at 100% for the flow condition mentioned previously. It is clear from the figure that ...

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  • Far-field hot-wire measurements on free jet from ... - CORE

    Complex nozzles use modifications to the exit geometry of supersonic nozzle to enhance the rate of mixing. Complex nozzles have significant beneficial effects when applied in air-breathing engines and supersonic ejectors. The far-field flow structure of supersonic free jets from complex nozzles have not been studied.

    Get Price
  • Design and Optimization of Flow Field of Tangentially ...

    A hot jet in the cold surrounding spreads faster than a cold jet in the same surrounding. For any downstream axial distance, the maximum velocity is at the centre and minimum at the periphery such that a parabolic is developed as shown in Fig.2 Figure 2. Jet dynamics from the burner as nozzle Table 2: Burner velocity arrangement

    Get Price
  • Professor Rathakrishnan's page

    Anuj Bajpai and Ethirajan Rathakrishnan Tab Geometry Effect on Supersonic Elliptic Jet Control, International Journal of Trubo and Jet Engines, 2016, DOI 10.1515/tjj, 2016-0020. Defromont Thomas and E Rathakrishnan Supersonic Jet Control with Air …

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  • ANALYSIS OF DUAL BELL ROCKET NOZZLE USING COMPUTATIONAL ...

    The concept of nozzle was first studied at the Jet Propulsion Laboratory in 1949. In the late 1960s, Rocket dyne patented this nozzle concept, which has received attention in recent years in the U.S. and Europe. Figure illustrates the design of this nozzle concept with its typical inner base nozzle, the wall

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  • Computational Analysis of Bell Nozzles - Avestia

    Proceedings of the 4th International Conference of Fluid Flow, Heat and Mass Transfer (FFHMT'17) Toronto, Canada – August 21 – 23, 2017 Paper No. 110 DOI: 10.11159/ffhmt17.110 110-1 Computational Analysis of Bell Nozzles Beena D. Baloni, Sonu P. Kumar, S. A. Channiwala

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  • Aerodynamic performance evaluation of twinjet afterbody ...

    associated mainly with jet exhaust plume effects, afterbody contours, nozzle afterbody geometry, tail support boom, fairing design, nozzle/engine spacing etc.[5-9]. To understand evaluate behaviour of these complex jets freestream interactions, a hardware system has been developed for the tests in base flow wind tunnel [10-12]. The

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  • International Journal of Engineering Trends and Technology ...

    nozzle jet ejector and is as follows A. Experimental set up 1. The experimental Setup for industry scale jet ejector is shown schematically in Figure 2. concentration and gas concentration. The results are compiled. Fig. 1 Detail of the jet ejector used in experimental setup These experiments were conducted on industrial stage

    Get Price
  • (PDF) IMPACT OF VARYING THE NOZZLE STAND - OFF DISTANCE ON ...

    This is 10-15% more than 30mm nozzle stand-off distance. 2. When Nozzle has been placed at 15mm stand-off distance then the cutting temperature is 5-8% more than 30mm nozzle stand-off distance. 3. The influence of nozzle stand-off is nearly equal to the influence speed rate on cutting temperature during more than 30mm stand-off distance. 4.

    Get Price
  • Far-field hot-wire measurements on free jet from ... - CORE

    Complex nozzles use modifications to the exit geometry of supersonic nozzle to enhance the rate of mixing. Complex nozzles have significant beneficial effects when applied in air-breathing engines and supersonic ejectors. The far-field flow structure of supersonic free jets from complex nozzles have not been studied.

    Get Price
  • EXPERIMENTAL STUDY OF SUDDENLY EXPANDED FLOW FROM ...

    expansion of air in a duct results in the base pressure and noise was studied by Anderson and Williams. When the flow remains attached, the base pressure showed minimum value, which depends mainly on the duct to nozzle area ratio and on the geometry of the nozzle. Various jet flow models for fuel injection into a combustion chamber and

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  • Institute of Physics

    The working of an ACHEON system rely on two effects namely jet interaction and the Coanda effect [5]. The tendency of a fluid to adhere to a curved surface (Figure 1) is called as the coanda effect. This phenomenon occurs because of the reduction in pressure caused by the high velocities of the jet [6].

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  • Professor Rathakrishnan's page

    Anuj Bajpai and Ethirajan Rathakrishnan Tab Geometry Effect on Supersonic Elliptic Jet Control, International Journal of Trubo and Jet Engines, 2016, DOI 10.1515/tjj, 2016-0020. Defromont Thomas and E Rathakrishnan Supersonic Jet Control with Air …

    Get Price
  • In Silico and In Vitro Experiments on Chevron Nozzles with ...

    In this manuscript comprehensive in silico and in vitro studies on the jet acoustic characterization of chevron nozzles for its geometry optimization have been carried out. In silico studies have been carried out using validated steady 3d, double precision, density-based implicit, SST k-ɷ turbulence model with heat transfer effect.

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  • [PDF] Thermal Performance of Solar Air Heater using Jet ...

    This paper presents investigation of a jet plate solar air heater designed with continuous longitudinal fins underneath the absorber plate (JPSAHCLF). Thermal efficiency and heat transfer enhancement of prototype is computed on the assumptions of steady state. Considering energy efficiency to be a strong function of geometrical parameters, the effect of collector performance indices on thermal ...

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  • Fluid Machinery Lab - Jet Pump Test Rig Apparatus ...

    A junction of nozzles is fitted on the top of the sand tank. This junction is provided with the variable height adjusting arrangement. Every nozzle has a valve which facilitates to select combination of nozzles and geometry of rain fall. The Water is fed to these nozzles with the help of a centrifugal pump connected to a sump tank.

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