Large eddy simulation of rotating channel and ribbed channel flows with and without heat transfer is reported. The rotation axis is parallel to the spanwise direction of the parallel plate channel. An implicit finite-volume scheme was used to solve the preconditioned time-dependent filtered Navier-Stokes equations using a dynamic subgrid-scale model to account for the subgrid-scale effects. The distribution of mean velocity and mean temperature were influenced by system rotation, transforming from a symmetric profile into a non-symmetric profile. The shift of peak values was toward the stable side of the channel. Near the stable (leading) side, the turbulent intensities and heat transfer were suppressed, but turbulence was enhanced with increasing shear stress and turbulent kinetic energy near the unstable (trailing) side.
|Number of pages||12|
|Journal||International Journal of Heat and Mass Transfer|
|Publication status||Published - 2004 Oct|
Bibliographical noteFunding Information:
The current research was partially supported by the Air Force Office of Scientific Research under grants F49620-94-1-0168, F49620-01-1-0113, and F49620-00-1-0229 and by the National Science Foundation under grants CTS-9414052 and CTS-9806989. The computer resources provided by University of Minnesota Supercomputing Institute are gratefully acknowledged.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes