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Keywords: Turbulence modeling
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Proceedings Papers

Proc. ASME. HT2005, Heat Transfer: Volume 4, 113-119, July 17–22, 2005
Publisher: American Society of Mechanical Engineers
Paper No: HT2005-72402
... for the calculations: laminar model and k-ω turbulence model (for transition flow). The Reynolds number for the molten salt side is less than 100; therefore the laminar flow model was used for these calculations. The results show that manufacturing geometrical effects influence very strongly pressure drop...
Proceedings Papers

Proc. ASME. HT2005, Heat Transfer: Volume 3, 571-578, July 17–22, 2005
Publisher: American Society of Mechanical Engineers
Paper No: HT2005-72329
... turbulence models generally perform poorly under such conditions. However, in the present work, a two-layer k-ε model is shown to accurately predict this flow through adjustment of a model constant related to the viscous sublayer thickness. Turbulence Modeling Two-layer Models Viscous Sublayer...
Proceedings Papers

Proc. ASME. HT-FED2004, Volume 2, Parts A and B, 715-725, July 11–15, 2004
Publisher: American Society of Mechanical Engineers
Paper No: HT-FED2004-56356
... are discussed. The potential of very large eddy simulations (VLES) of flows dominated by (pseudo)-deterministic eddy structures, based on transient RANS (T-RANS) and similar approaches is discussed and illustrated in an example of “ultra-hard” (very high Ra) thermal convection. Turbulence modeling...