Vietnam PDF The effect of nozzle geometry on air-jet textureAssociation

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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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  • EFFECT OF NOZZLE GEOMETRY ON THE EFFICIENCY OF

    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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  • An Investigation of the Inuence of Nozzle Aspect Ratio on ...

    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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  • Influence of liquid hydrophobicity and nozzle passage ...

    2018-2-23 · This study investigates the effect of nozzle geometry on the intermingling process. The dimensions of intermingling nozzles with single air inlets extended across the width of a rectangular yam channel are systematically varied. Nozzles with this cross-sectional shape prove to be easy to manufacture and efficient at intermingling.

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  • FLUID FLOW AND HEAT TRANSFER OF AN IMPINGING

    The nozzle aspect ratio has a more significant effect on the near-field jet stream characteristics for both fluids than the orifice inlet shape. Longer nozzles (l /d = 20) form more stable jet streams and delay the breakup of sheets, leading to greater breakup length than that attained with shorter nozzles (l /d = 5). For similar Reynolds ...

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  • Particle precipitation by bipolar corona discharge ion winds

    2012-5-17 · American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

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  • THRUST VECTORING NOZZLE FOR MILITARY AIRCRAFT

    2012-5-17 · 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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  • Experimental Study of Air-Lift Pumps Characteristics

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

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

    Micro abrasive jet machining (MAJM) is a high effective economical technology for three dimensional micro structure fabrications of brittle materials. It is widely used in the fabrication of semiconductors, electronic devices, micro electro-mechanical systems (MEMS), optical-electronic and optical devices, and medical instruments. In this paper, based on the experimental study of MAJM for ...

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

    2015-2-2 · the percentage of the distance between throat section and nozzle and the driving air pressure, suction head and also study the effect of each parameter on the air lift pump characteristics in order to have a better performance of such pump under various conditions. A certain geometry for air-lift pump designed and manufactured.

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  • DESIGN AND CFD ANALYSIS OF CONVERGENT AND

    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 this project work ...

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  • A Century of Ramjet Propulsion Technology Evolution

    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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  • Plant Engineering & Construction Division

    2021-7-13 · Bai, H. and B. G. Thomas, “Effect of Clogging, Argon Injection and Casting Conditions on Flow Rate and Air Aspiration in Submerged Entry Nozzles,” Proceedings of the 59th Ironmaking Conference, Pittsburgh, PA, March 26-29, 2000; 83, 183-197, Iron and Steel Society, Warrendale, PA, 2000. Click here for a PDF version. (1.41 MB)

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  • Rocket Nozzle Design with Ejector Effect Potential

    2007-11-13 · potential for incorporating the ejector effect. The nozzle is designed such that the diverging portion of the nozzle geometry must pass through a gate that is placed on the outer perime-ter whose shape does not have to remain axisymmetric, thus creating a void for air intake into the centre of an annular rocket exhaust stream.

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  • Flow Visualization Studies of VTOL Aircraft Models During ...

    2014-12-23 · To date, the effect of premix fuel nozzle geometry on combustion dynamics has not been well-documented. This paper presents experimental stability data from several different fuel nozzle geometries (i.e., changing the axial position of fuel injection in the premixer, and considering simultaneous injection from two axial positions).

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  • DESIGN AND CFD ANALYSIS OF CONVERGENT AND

    2018-8-15 · jet-powered vertical takeoff and landing (VTOL) model during hover in ground effect was conducted. A surface oil flow technique was used to observe the flow patterns on the lower surfaces of the model. Wing height with respect to fuselage and nozzle pressure ratio are seen to have a strong effect on the wing trailing edge flow angles.

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  • CRN Application to Predict the NOx Emissions for ...

    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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  • CFD Modelling of Primary Atomisation of Diesel Spray

    2015-11-13 · CRN Application to Predict the NOx Emissions for Industrial Combustion Chamber Nguyen Thanh Hao 1 and Park Jungkyu2 1Industrial University of HoChiMinh City, 12, NguyenVanBao, GoVap, HoChiMinh, Vietnam 2Depatment of Mechanical Engineering, Konkuk University, 120 Neungdong, Gwangjin, Seoul, Korea Email: [email protected] (Received on 15 March 2013 and …

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