Abstract
The use of wall-modeled large-eddy simulation (WMLES) is explored in the context of compressible flows with a focus on cold-wall boundary layers and flows with shock-induced separation. It is observed that for cold-wall flows, a “mixed” scaling for the length scale appearing in the eddy viscosity formulation outperforms the classical semilocal scaling for obtaining predictions of heat flux and skin friction. A few shock/boundary-layer interaction (SBLI) cases are examined in some detail, and model modifications are proposed to overcome identified deficiencies. It is shown that using WMLES the low-frequency characteristics of SBLI at high Reynolds number can be quantitatively captured. A dynamically switched version of the equilibrium model is proposed; this shows promise for relatively inexpensive simulations at these conditions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 4302-4324 |
| Number of pages | 23 |
| Journal | AIAA journal |
| Volume | 60 |
| Issue number | 7 |
| DOIs | |
| State | Published - 2022 |
Bibliographical note
Funding Information:The authors gratefully acknowledge support from the U.S. Air Force Office of Scientific Research High-Speed Aerodynamics Program. This material is based upon work supported by the U.S. Air Force Office of Scientific Research under award number FA9550-17-1-0157. Any opinions, findings, and conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the U.S. Air Force.
Funding Information:
The authors gratefully acknowledge support from the U.S. Air Force Office of Scientific Research High-Speed Aerodynamics Program. This material is based upon work supported by the U.S. Air Force Office of Scientific Research under award number FA9550-171-0157. Any opinions, findings, and conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the U.S. Air Force.
Publisher Copyright:
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