NUMERICAL PREDICTION OF HEAT TRANSFER TO LOW-PRANDTL-NUMBER FLUIDS
- 1 October 1979
- journal article
- research article
- Published by Taylor & Francis in Numerical Heat Transfer
- Vol. 2 (4) , 441-454
- https://doi.org/10.1080/10407787908913424
Abstract
Numerical prediction of the heat transfer to low-Prandtl-number fluids has been carried out. A one-equation (k) turbulence model in the near-wall region and a two-equation (k ∼ e) turbulence model In the core region are employed. Many expressions proposed in the literature for the Prt numbers are examined. The fully developed temperature profiles obtained are compared with experimental results In the ranges Pr = 0.019–0.029 and Re = 40,000–400,000. The following Prt relations are finally recommended: the Aoki and Reynolds expressions in the range Re = 40,000–170,000 and the relation proposed by Jischa and Rieke for Re = 170,000–260,000. The Nusselt number results are compared with the experimental data In the literature and the agreement is good.Keywords
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