NDLI: Comparison of three large-eddy simulations of shock-induced turbulent separation bubbles

Content Provider	Springer Nature Link
Author	Touber, Emile Sandham, Neil D.
Copyright Year	2009
Abstract	Three different large-eddy simulation investigations of the interaction between an impinging oblique shock and a supersonic turbulent boundary layer are presented. All simulations made use of the same inflow technique, specifically aimed at avoiding possible low-frequency interferences with the shock/boundary-layer interaction system. All simulations were run on relatively wide computational domains and integrated over times greater than twenty five times the period of the most commonly reported low-frequency shock-oscillation, making comparisons at both time-averaged and low-frequency-dynamic levels possible. The results confirm previous experimental results which suggested a simple linear relation between the interaction length and the oblique-shock strength if scaled using the boundary-layer thickness and wall-shear stress. All the tested cases show evidences of significant low-frequency shock motions. At the wall, energetic low-frequency pressure fluctuations are observed, mainly in the initial part of interaction.
Ending Page	478
Page Count	10
Starting Page	469
File Format	PDF
ISSN	09381287
e-ISSN	14322153
Journal	Shock Waves
Issue Number	6
Volume Number	19
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-08-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Condensed Matter Physics Thermodynamics Shock boundary layer interaction Fluid- and Aerodynamics Engineering Thermodynamics, Heat and Mass Transfer Separation bubble Engineering Fluid Dynamics Acoustics LES Low-frequency unsteadiness
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanical Engineering

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