Academic literature on the topic 'Supersonic Axisymmetric Jet'

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Journal articles on the topic "Supersonic Axisymmetric Jet"

1

Samanta, Arnab. "On the axisymmetric stability of heated supersonic round jets." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2188 (2016): 20150817. http://dx.doi.org/10.1098/rspa.2015.0817.

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We perform an inviscid, spatial stability analysis of supersonic, heated round jets with the mean properties assumed uniform on either side of the jet shear layer, modelled here via a cylindrical vortex sheet. Apart from the hydrodynamic Kelvin–Helmholtz (K–H) wave, the spatial growth rates of the acoustically coupled supersonic and subsonic instability waves are computed for axisymmetric conditions ( m =0) to analyse their role on the jet stability, under increased heating and compressibility. With the ambient stationary, supersonic instability waves may exist for any jet Mach number M j ≥2,
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2

Peters, Ivo R., Yoshiyuki Tagawa, Nikolai Oudalov, et al. "Highly focused supersonic microjets: numerical simulations." Journal of Fluid Mechanics 719 (February 19, 2013): 587–605. http://dx.doi.org/10.1017/jfm.2013.26.

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AbstractBy focusing a laser pulse inside a capillary partially filled with liquid, a vapour bubble is created that emits a pressure wave. This pressure wave travels through the liquid and creates a fast, focused axisymmetric microjet when it is reflected at the meniscus. We numerically investigate the formation of this microjet using axisymmetric boundary integral simulations, where we model the pressure wave as a pressure pulse applied on the bubble. We find a good agreement between the simulations and experimental results in terms of the time evolution of the jet and on all parameters that c
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3

Zapryagaev, V. I., N. P. Kiselev, and A. A. Pivovarov. "Gasdynamic structure of an axisymmetric supersonic underexpanded jet." Fluid Dynamics 50, no. 1 (2015): 87–97. http://dx.doi.org/10.1134/s001546281501010x.

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4

Tipnis, T. J., M. V. Finnis, K. Knowles, and D. Bray. "Density measurements for rectangular free jets using background-oriented schlieren." Aeronautical Journal 117, no. 1194 (2013): 771–85. http://dx.doi.org/10.1017/s0001924000008447.

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AbstractAn experimental study incorporating the use of the Background-Oriented Schlieren (BOS) technique was performed to measure the density field of a rectangular supersonic jet. This technique is easier to set up than conventional schlieren since the optical alignment involving the various mirrors, lenses and knife-edge is replaced by a background pattern and a single digital camera. The acquired images which contain information of density gradients in the flow are solved as a Poisson equation and further processed using deconvolution and tomographic algorithms to generate a 3D domain which
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5

MATÉ, B., I. A. GRAUR, T. ELIZAROVA, et al. "Experimental and numerical investigation of an axisymmetric supersonic jet." Journal of Fluid Mechanics 426 (January 10, 2001): 177–97. http://dx.doi.org/10.1017/s0022112000002329.

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A comprehensive study of a steady axisymmetric supersonic jet of CO2, including experiment, theory, and numerical calculation, is presented. The experimental part, based on high-sensitivity Raman spectroscopy mapping, provides absolute density and rotational temperature maps covering the significant regions of the jet: the zone of silence, barrel shock, Mach disk, and subsonic region beyond the Mach disk. The interpretation is based on the quasi-gasdynamic (QGD) system of equations, and its generalization (QGDR) considering the translational–rotational breakdown of thermal equilibrium. QGD and
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6

Kitazono, Kazumasa, Hiroshi Fukuoka, Nao Kuniyoshi, et al. "Study of Interaction between Unsteady Supersonic Jet and Vortex Rings Discharged from Elliptical Cell." Materials Science Forum 910 (January 2018): 137–42. http://dx.doi.org/10.4028/www.scientific.net/msf.910.137.

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Pulsed laser ablation with an elliptical cell gives well-defined thermodynamic conditions to the growth of high-quality thin films. The unsteady supersonic jet formed by the shock tube with small high-pressure chamber was used as a simple alternative model of pulsed laser ablation. The vortex ring formed by the shock wave is important to reveal behavior of unsteady supersonic jet discharged from elliptical cell. However, there has been little effort to investigate the interaction between the vortex ring and the jet. The purpose of the present study is to investigate the behavior of the vortex
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7

Dahl, Milo D., and Philip J. Morris. "Supersonic Jet Noise Reductions Predicted With Increased Jet Spreading Rate." Journal of Fluids Engineering 120, no. 3 (1998): 471–76. http://dx.doi.org/10.1115/1.2820686.

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In this paper, predictions are made of noise radiation from single, supersonic, axisymmetric jets. We examine the effects of changes in operating conditions and the effects of simulated enhanced mixing that would increase the spreading rate of the jet shear layer on radiated noise levels. The radiated noise in the downstream direction is dominated by mixing noise and, at higher speeds, it is well described by the instability wave noise radiation model. Further analysis with the model shows a relationship between changes in spreading rate due to enhanced mixing and changes in the far field radi
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8

Graham, Mary Jane, and Paul Weinacht. "Numerical Investigation of Supersonic Jet Interaction for Axisymmetric Bodies." Journal of Spacecraft and Rockets 37, no. 5 (2000): 675–83. http://dx.doi.org/10.2514/2.3617.

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9

Mironov, Sergey, Vladimir Aniskin, Tatiana Korotaeva, and Ivan Tsyryulnikov. "Effect of the Pitot Tube on Measurements in Supersonic Axisymmetric Underexpanded Microjets." Micromachines 10, no. 4 (2019): 235. http://dx.doi.org/10.3390/mi10040235.

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This paper describes the results of methodical investigations of the effect of the Pitot tube on measurements of gas-dynamic parameters of supersonic axisymmetric underexpanded real and model microjets. Particular attention is paid to distortions of Pitot pressure variations on the jet axis associated with the wave structure of the jet and to distortions of the supersonic core length. In experiments with model jets escaping from nozzles with diameters ranging from 0.52 to 1.06 mm into the low-pressure chamber, the measurements are performed by the Pitot tubes 0.05 to 2 mm in diameter. The resu
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10

Zamuraev, Vladimir, and Anna Kalinina. "Creating Of Stable Transonic Zone Into Supersonic Flow In Axisymmetrical Channel By The Action Of Jet And Energy Sources." Siberian Journal of Physics 11, no. 4 (2016): 45–51. http://dx.doi.org/10.54362/1818-7919-2016-11-4-45-51.

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The effect of the jet flowing out from the gas generator through a narrow annular gap, on the shockwave structure of the flow in the axisymmetric channel of variable section is studied. The effect of the gap size is investigated. The possibility to control the shock-wave structure of supersonic flow in the channel and creating of transonic area using pulsed-periodic energy supply and jet is studied.
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