Results 251 to 260 of about 285,233 (302)

Experimental study of supersonic co-flowing jet

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2018
A detailed experimental study was carried out to investigate the behaviour of a Mach 2 primary jet in the presence of a Mach 1.6 annular co-flow. The lip thickness of the inner nozzle was 7.75 mm. The characteristics of jets were investigated at nozzle pressure ratios 3 to 8, in steps of 1.
De Satyajit, Ethirajan Rathakrishnan
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Experimental study of overexpanded co-flowing jets

The Aeronautical Journal, 2008
AbstractAn experimental investigation was carried out to find the effect of an annular co-flow jet on the primary supersonic jet from Mach 2 nozzle at different levels of overexpansion. In this study, a convergent-divergent circular nozzle of exit Mach number 2, surrounded by an annular convergent circular nozzle with an annular gap of 4·4mm was used ...
H. Sharma, A. Vashishtha, E. Rathakrishnan, P. Lovaraju   +3 more
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Experimental Investigation of Jet Mixing Mechanism of Co-Flow Jet Airfoil

5th Flow Control Conference, 2010
The jet mixing of a co-flow jet (CFJ) airfoil is investigated to understand the mechanism of lift enhancement, drag reduction, and stall margin increase. Digital Particle Image Velocimetry, flow visualization and aerodynamic forces measurements are used to reveal the insight of the CFJ airfoil mixing process.
Bertrand Dano, Danah Kirk, Gecheng Zha
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Effect of jet velocity in co-flow water cavitation jet peening

Wear, 2016
Abstract Water cavitation jet peening (WCP) uses cavitation caused by the shear layer created by two concentric co-flowing jets with large velocity difference to introduce compressive residual stresses in the surface layers of metal components subjected to fatigue loading or a corrosive environment.
Andrea Marcon, Shreyes N. Melkote, James Castle, Daniel G. Sanders, Minami Yoda   +4 more
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Combustion of gaseous coflow jets

Combustion Science and Technology, 2003
We present numerical results concerning the combustion that occurs in a three-plan jet system, which represents the two-dimensional version of a coflow gaseous injector of hydrogen and oxygen. The study focuses on the hydrodynamic effects--damped by combustion--that affect the high-speed jets at the entrance of a combustion chamber.
Nicoli, Colette, Haldenwang, Pierre, Denet, Bruno   +2 more
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Co-Flowing Jet Control Using Lip Thickness Variation

International Journal of Turbo & Jet-Engines, 2018
Abstract The control of co-flowing jets by varying lip thickness has been studied experimentally. Lip thickness is defined as the thickness of primary nozzle wall separating primary jet and secondary jet at the co-flowing nozzle exit. Co-flowing jets from a primary nozzle of diameter 10 mm (1.0 Dp) and a secondary duct with lip thickness
R. Naren Shankar, S. Thanigaiarasu, S. Elangovan, E. Rathakrishnan   +3 more
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Soot emission reduction in oxygenated co-flow jet flames

Proceedings of the Combustion Institute, 2021
Abstract A computational study was performed for ethylene/air non-premixed laminar co-flow jet flames using an axisymmetric CFD code to explore the effect of oxygenation on PAH and soot emissions. Oxygenated flames were established using N2 diluted fuel stream along with O2 enriched air stream such that the stoichiometric mixture fraction (Ζst) is ...
Krishna C. Kalvakala, Viswanath R. Katta, Suresh K. Aggarwal   +2 more
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Liposome Formation Using a Coaxial Turbulent Jet in Co-Flow

Pharmaceutical Research, 2015
Liposomes are robust drug delivery systems that have been developed into FDA-approved drug products for several pharmaceutical indications. Direct control in producing liposomes of a particular particle size and particle size distribution is extremely important since liposome size may impact cellular uptake and biodistribution.A device consisting of an
Antonio P, Costa, Xiaoming, Xu, Mansoor A, Khan, Diane J, Burgess   +3 more
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Experimental Study of Co-Flow Jet Airfoil Performance Enhancement Using Discreet Jets

49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2011
This paper demonstrates a new performance enhancement methodology for Co-Flow Jet (CFJ) airfoils using discrete injection jets. This research is motivated by the hypothesis that a discrete CFJ (DCFJ) airfoil will generate both streamwise and spanwise vortex structures to achieve more effective turbulent mixing than an open slot CFJ airfoil. Aerodynamic
Bertrand Dano, Gecheng Zha, Michael Castillo   +2 more
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Experimental Studies on Co-flowing Subsonic and Sonic Jets

Flow, Turbulence and Combustion, 2011
Effect of an annular co-flow jet on the center jet at subsonic, correctly expanded and underexpanded sonic conditions was studied experimentally. It is found that the co-flow retards the mixing of the primary jet, leading to potential core elongation. The characteristic decay of the jet is also retarded in the presence of co-flow.
Pinnam Lovaraju, E. Rathakrishnan
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