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Article
Simulations of heat transfer in a boundary layer subject to free-stream turbulence
| Authors: |
Li, Q., Schlatter, P., Henningson, D.S.H. |
| Document Type: |
Conference |
| Pubstate: |
Published |
| Journal: |
Turbulence and Shear Flow Phenomena - 6 |
| Volume: |
I
195-200 |
| Year: |
2009 |
AbstractThe present study investigates the effects of the ambient free-stream turbulence (FST) on the momentum and heat transfer in a turbulent flat-plate boundary layer via large-eddy simulations (LES) using the ADM-RT model. Due to a FST of 20%, the skin-friction coefficient cf and Stanton number St are substantially elevated up to 15% in the fully turbulent region. The depression of both the mean velocity and temperature profiles in the wake region due to the FST is observed, however, the influence on the wall-normal heat flux in the near-wall region is negligible.
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