Unstructured grid simulations of spatially evolving supersonic shear layers

AIAA Journal ◽  
1995 ◽  
Vol 33 (7) ◽  
pp. 1229-1238 ◽  
Author(s):  
Choong K. Oh ◽  
Eric Loth
Keyword(s):  
Unstructured Grid ◽  
Shear Layers ◽  
Supersonic Shear Layers

Mixing enhancement in supersonic shear layers

1987 ◽  
Author(s):  
R. GUIRGUIS ◽  
F. GRINSTEIN ◽  
T. YOUNG ◽  
E. ORAN ◽  
K. KAILASANATH
Keyword(s):  
Shear Layers ◽  
Mixing Enhancement ◽  
Supersonic Shear Layers

On the Kelvin-Helmholtz instabilities of supersonic shear layers

1984 ◽  
Vol 283 ◽  
pp. 331 ◽  
Author(s):  
S. R. Choudhury ◽  
R. V. E. Lovelace
Keyword(s):  
Shear Layers ◽  
Supersonic Shear Layers

Aerodynamic noise emission from turbulent shear layers

1973 ◽  
Vol 59 (3) ◽  
pp. 451-479 ◽  
Author(s):  
S. P. Pao
Keyword(s):  
Wave Equation ◽  
Fourier Transformation ◽  
Shear Layers ◽  
Aerodynamic Noise ◽  
Wave Radiation ◽  
Turbulent Shear ◽  
Noise Emission ◽  
Round Jets ◽  
Spatial Dimensions ◽  
Supersonic Shear Layers

The Phillips (1960) convected wave equation is employed in this paper to study aerodynamic noise emission processes in subsonic and supersonic shear layers. The wave equation in three spatial dimensions is first reduced to an ordinary differential equation by Fourier transformation, then solved via the WKBJ method. Three typical solutions are required for discussions in this paper. The current results are different from the classical conclusions. The effects of refraction, convection, Mach-number dependence and temperature dependence of turbulent noise emission are analysed in the light of solutions to the Phillips equation. Owing to the inherent restrictions of the WKBJ transformation, the results of the present paper should be applied to wave radiation from shear layers whose thickness is no less than approximately one quarter of a wavelength. Such a condition is satisfied for turbulent round jets with an exit velocity greater than 0·6 times the ambient speed of sound.

Investigations on the accurate prediction of supersonic shear layers for detached eddy simulation

2019 ◽  
Vol 89 ◽  
pp. 46-57 ◽  
Author(s):  
Peixu Guo ◽  
Zhenxun Gao ◽  
Zhengyuan Wu ◽  
Hongpeng Liu ◽  
Chongwen Jiang ◽  
...  
Keyword(s):  
Shear Layers ◽  
Accurate Prediction ◽  
Detached Eddy Simulation ◽  
Eddy Simulation ◽  
Supersonic Shear Layers
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