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  • Effect of Nozzle Geometry on Air-Jet Texturing

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

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  • Effect of nozzle geometry on the performance and

    2020-4-22 · The air-jet texturing process is widely known for its ability to produce spun-like synthetic continuous filament yarns. Structural modification is achieved by contact of the continuous feed yarn with a supersonic air stream delivered by a nozzle. The details of the flow patterns are influenced by the geometry of the nozzle. This

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  • EFFECT OF NOZZLE GEOMETRY ON THE

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

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  • Experimental Study of Influence of Different Nozzle ...

    A water jet is generated at the outlet of the nozzle (5) that strikes the target plate (6), which it located at a certain distance x in front of the nozzle. The jet …

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  • Effect of Abrasive on Water Jet Nozzle

    2018-8-29 · geometry ( modified nozzle geometry). Blends like B20, B40, B60, B80, B100 and standard diesel were used in engine and studied the performance and emission characteristics without altering the compression ratio of the engine. The experimental results showed that higher Brake thermal efficiency (BTE) for baseline nozzle geometry …

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  • Effect of Abrasive on Water Jet Nozzle

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

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  • Heat Transfer Enhancement by Jet Impingement ... -

    23rdNational Conference on I. C. Engine and Combustion (NCICEC 2013) SVNIT, Surat, India 13-16, December 2013 Effect of Nozzle Geometry on Flame Characteristics of a Swirl Stabilized Hydrogen Combustor D. P. Mishra and R. Khatry Department of Aerospace Engineering Indian Institute of Technology Kanpur Abstract This paper presents an …

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  • SSRG International Journal of Mechanical

    2019-2-1 · Nozzle geometry does have a significant impact of nozzle performance. Effect of single-phase air flow through a nozzle revealed the effect of different nozzle parameters on nozzle performance. A lower diverging angle and no elongated throat gave the best critical pressure ratio and a low pressure drop.

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  • DECAY OF SUPERSONIC RECTANGULAR JET

    For each of these 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% less mass flow ...

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

    For each of these 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% less mass flow ...

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  • Nozzle Wear Parameter in Water jet machining The

    2021-8-2 · Ansys Nozzle Jet modeling of mist and fog jet vikash kumar singh chauhan goal working on the fluent modeling of the fog and ... this analysis is totally depends on nozzle geometry and nozzle material is taken same for all cases this ... an effect on the mixing of water air and the abrasives and that the velocity of the wa jet coherence …

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

    2014-4-1 · A nozzle is required to perform abrasive waterjet machining for material removal with the help of very high velocity of waterjet. The main problem of AWJ machining process is nozzle wear during the process. The wear depends on various parameters such as water jet characteristics, nozzle geometry, etc.

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  • Review of Correlations on Jet Impingement Cooling

    2021-7-31 · 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 Noise Reduction in Jet Engine using Chevron Nozzle May 15th, 2019 - conventional nozzles with minimal impact on performance In …

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  • EXPERIMENTAL AND STATISTICAL ANALYSIS ON

    2020-4-1 · other arrangements are nozzle geometry of square edge (no chamfered) and with chamfered edge, inclined jet, axially symmetric air jet, elliptic jet arrays. Swirling Jet the impinging jet is forced to swirl when exiting the jet orifice/nozzle, providing a flow commonly known as the swirling jet.

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  • Flow visualization of the jet exiting a chevron nozzle

    A numerical study has been conducted to analyze the effect of nozzle exit geometry (lobed nozzle) on temperature mixing at the wake of jet. A lobed nozzle is a plate with corrugated edges and facilitates efficient mixing of co-flow streams. It

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

    2018-9-20 · The present Paper aims to present a comparative study of the external and internal flow characteristics through an axisymmetric circular convergent nozzle, a nonserpentine convergent nozzle with an elliptic exit, and a shallow single serpentine convergent nozzle with an elliptic exit under the fully expanded condition at a nozzle …

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  • NUMERICAL AND EXPERIMENTAL INVETIGATIONS

    2021-8-2 · Ansys Nozzle Jet modeling of mist and fog jet vikash kumar singh chauhan goal working on the fluent modeling of the fog and ... this analysis is totally depends on nozzle geometry and nozzle material is taken same for all cases this ... an effect on the mixing of water air and the abrasives and that the velocity of the wa jet coherence …

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  • STUDY OF DECAY CHARACTERISTICS OF

    2018-4-3 · 2018-01-0301. The influence of nozzle geometry on spray and combustion of diesel continues to be a topic of great research interest. One area of promise, injector nozzles with micro-holes (i.e. down to 30 μm), still need further investigation. Reduction of nozzle orifice diameter and increased fuel injection pressure typically promotes air ...

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  • Jet Impingement Heat Transfer: Physics,

    2020-12-1 · 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 …

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  • Heat Transfer Enhancement by Jet Impingement ... -

    2016-4-1 · incident the high velocity air jet coming from the nozzle on a target surface having dimples of various geometry. It is used for cooling, heating and drying purposes like in hot metal cooling, turbine blades cooling and in cooling electronics equipments etc. This study will investigate the effect of jet impingement on a

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  • STUDY OF DECAY CHARACTERISTICS OF

    2018-12-6 · 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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  • Characteristics of Turbulent Round Jets in its

    2013-4-23 · number [6], nozzle geometry and turbulent intensity at the nozzle exit [7,8,9,10,11]. The effect of different nozzle intrusions in the jet was studied by a few researchers [12,13,14]. The effect of Reynolds number in the near-field of turbulent round jet had been studied by using stationary and flying hot-wire anemometer [6].

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  • DECAY OF SUPERSONIC RECTANGULAR JET

    2020-9-9 · This paper addresses the effect of expansion ramps on the decay characteristics of a controlled supersonic rectangular jet. A Mach 1.8 rectangular jet issuing from a converging-diverging nozzle of aspect ratio 2 and Reynolds number 1.861∙105 is considered as the base model for the study. Two separate nozzle models …

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  • Corrugated Tabs for Supersonic Jet Control (Keynote

    2003-2-1 · Influences of nozzle flow and nozzle geometry on the shape and size of an air core in a hollow cone swirl nozzle M R Halder, S K Dash, and S K Som Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 2003 217 : 2 , 207-217

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  • FLUID FLOW AND HEAT TRANSFER OF AN

    2009-6-29 · subsonic or supersonic, is the distance from nozzle exit at which the characteristic decay begins. The centerline pitot pressure decay for the uncontrolled jet, controlled jet with plain tabs and corrugated tabs are given in Fig. 3. At NPR 4, Mach 1.8 jet is overexpanded with overexpansion ratio 2 Ø 2 Ô = 0.696. For this level of …

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  • A review on nozzle wear in abrasive water jet

    2007-10-31 · 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 …

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  • NOZZLES - UPM

    2017-6-2 · 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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