On the Impingement of Supersonic Jet on a Normal Flat Surface

Pamadi, Bandu N.

doi:10.1017/s0001925900009422

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…Most of the former studies on supersonic jet impingement deal with experimental investigation of perpendicular impingement on a flat plate [1][2][3][4] . These studies, explained the existence of stagnation bubbles that appears in the vicinity of the plate surface, affecting the pressure peaks on the plate surface and the stability of the jet.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Supersonic Jet Impingement on Inclined Plate

Dharavath

Chakraborty

2013

DSJ

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Supersonic jet impinging on an inclined plate is explored numerically by solving Reynolds Averaged Navier Stokes (RANS) equations using a commercial solver. The numerical uncertainty is quantified by grid convergence index parameter analysis. Simulations capture crisply all the essential features of the flow field including jet boundary, jet shock, upper tail shock, front and behind plate shocks. Good agreement between computational and experimental results for different plate angles forms the basis of further analysis. Four different two equations turbulence models predict similar jet structures. Effect of plate angles, pressure ratio, nozzle-plate distance on impinged jet structures are evaluated from numerical results. It has been observed that with increase in the plate angle, the maximum pressure zone in the plate changed from crescent shape to round shape. Well resolved RANS simulations are capable of capturing finer details of supersonic impinging jets on inclined plate.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Supersonic Jet Impingement on Inclined Plate

Dharavath

Chakraborty

2013

DSJ

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CFD Prediction of Supersonic Jet Impingement on Inclined Flat Plate

Mezzacapo,

De Stefano

2024

Lecture Notes in Computer Science

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The connection between sound production and jet structure of the supersonic impinging jet

Henderson

2002

The Journal of the Acoustical Society of America

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An experimental investigation into the sound-producing characteristics of moderately and highly underexpanded supersonic impinging jets exhausting from a round convergent nozzle is presented. The production of large plate tones by impingement on a square plate with a side dimension equal to 12 nozzle exit diameters is studied using random and phase-locked shadowgraph photography. Discrete frequency sound is produced in the near-wall region of the jet when a Mach disk occurs upstream of the standoff shock wave. Tones cease when the plate distance is approximately 2.2 free-jet cell lengths and the first and second shock waves are located in the free-jet positions. The production of impulsive sound appears to be associated with the collapse of the standoff shock wave during a portion of the oscillation cycle. Results from unsteady plate-pressure measurements indicate that plane-wave motion occurs in the impingement region and a secondary pressure maximum is observed on the plate adjacent to the flow region where sound appears to originate.

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On the Impingement of Supersonic Jet on a Normal Flat Surface

Cited by 6 publications

References 12 publications

Numerical Simulation of Supersonic Jet Impingement on Inclined Plate

Numerical Simulation of Supersonic Jet Impingement on Inclined Plate

CFD Prediction of Supersonic Jet Impingement on Inclined Flat Plate

The connection between sound production and jet structure of the supersonic impinging jet

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