We perform wall-modeled large eddy simulations (WMLES) of turbulent flow over a Gaussian-shaped bump geometry, to assess its performance in the accelerating and separation regions of the flow. The flow conditions are based on the ongoing CFD validation experiments of Slotnick [NATO STO-MP-AVT-307, 2019]. The oncoming flow Mach number is 0.176, and two Reynolds numbers are simulated that are about 10000 and 36000 based on boundary layer thickness upstream of the bump. Preliminary Reynolds-averaged Navier-Stokes simulations are first performed to assess the effects of Mach number, Reynolds number, tunnel top and sidewall effects. Finally, WMLES results with an equilibrium wall model will be presented at two Reynolds numbers to assess their performance for this flow by making detailed comparisons with available experimental and higher-fidelity numerical data.
Document ID
20205002735
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Date Acquired
May 26, 2020
Subject Category
Meeting Information
Meeting: AIAA Scitech 2021
Location: Nashville, TN
Country: US
Start Date: January 11, 2021
End Date: January 15, 2021
Sponsors: American Institute of Aeronautics and Astronautics
Funding Number(s)
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
Single Expert
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