numerical simulation of turbulent fluid flow and heat transfer in a ribbed rotating two-pass square duct

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ID: 194989
2005
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Abstract
The local turbulent fluid flow and heat transfer in a rotating two-pass square duct with 19 pairs of in-line 90∘ ribs have been investigated computationally. A Reynolds-averaged Navier-Stokes equation (RANS) with a two-layer k−ε turbulence model was solved. The in-line 90∘ ribs were arranged on the leading and trailing walls with rib height-to-hydraulic diameter ratio and pitch-to-height ratio of 0.136 and 10, respectively. The Reynolds number, based on duct hydraulic diameter and bulk mean velocity, was fixed at 1.0×104 whereas the rotational number varied from 0 to 0.2. Results are validated with previous measured velocity field and heat transfer coefficient distributions. The validation shows that the effect of rotation on the passage-averaged Nusselt number ratio can be predicted reasonably well; nevertheless, the transverse mean velocity and, in turn, the distribution of regional-averaged Nusselt number ratio are markedly underpredicted in the regions toward which the Coriolis force is directed. Further CFD studies are needed.
Reference Key
liou2005internationalnumerical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Tong-Miin Liou;Shih-Hui Chen;Yi-Chen Li
Journal ACS omega
Year 2005
DOI
10.1155/IJRM.2005.152
URL
http://dx.doi.org/10.1155/IJRM.2005.152
Keywords
heat transfer engineering (general) civil engineering (general)

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