Numerical simulations are performed of the turbulent flow and thermal field in a structured porous media. The geometry of interest is an open lattice structure that is made up of mutually orthogonal, millimeter-scale, thermally conductive cylindrical elements. A large-eddy simulation (LES) is performed and the results are used as reference data to evaluate the performance of three commonly used Reynolds Averaged Navier-Stokes (RANS) models: the Spalart-Allmaras model (SAM), the k-ω model (KWM) and the shear stress transport k-ω model (KWM/SST). Mean velocities, turbulent kinetic energy profiles, and turbulent viscosity predictions are compared as well as friction factor, wall shear stress and Stanton number.
- Heat Transfer Division and Electronic and Photonic Packaging Division
Comparison of LES and RANS Simulations of Turbulent Convection in a Structured Porous Media
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Gullbrand, J, & Wirtz, RA. "Comparison of LES and RANS Simulations of Turbulent Convection in a Structured Porous Media." Proceedings of the ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. Heat Transfer: Volume 3. San Francisco, California, USA. July 17–22, 2005. pp. 693-701. ASME. https://doi.org/10.1115/HT2005-72148
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