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THMT-12. Proceedings of the Seventh International Symposium On Turbulence Heat and Mass Transfer
September, 24-27, 2012, Palermo, Italy

DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal


ISBN Print: 978-1-56700-302-4

ISSN: 2377-2816

On the establishment of a logarithmic mean temperature profile in fully developed turbulent pipe flow with constant surface heat flux

pages 2377-2388
DOI: 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.2450
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SINOPSIS

Direct Numerical Simulations (DNS) of turbulent heat transfer in a pipe have been computed over the range of Prandtl number, 0.2 ≤ Pr ≤ 7.0, at fixed Karman number, Reτ = 180. These data sets are used to explore the similarity structure affiliated with the mechanisms that underlie the establishment of the mean temperature profile for fully developed turbulent transport through a pipe subjected to a constant surface heat flux. The analysis, which follows the framework developed by Wei et al. (2005a), employs multiscale analysis of the Reynolds-averaged energy equation to develop a basis for understanding how the characteristics of the relevant transport terms develop self-similar relationships characteristic at high Peclet number, Peτ = PrReτ.

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