Conference Proceedings
On the establishment of a logarithmic mean temperature profile in fully developed turbulent pipe flow with constant surface heat flux
S Saha, JC Klewicki, ASH Ooi, HM Blackburn
Proceedings of the International Symposium on Turbulence Heat and Mass Transfer | BEGELL HOUSE, INC | Published : 2012
Abstract
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 Kármán number, Ret = 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 relationship..
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Funding Acknowledgements
The authors gratefully acknowledge the financial support of the Australian Research Council and the computational resources provided by a Victorian Life Sciences Computation Initiative (VLSCI) grant on its Peak Computing Facility at the University of Melbourne, an initiative of the Victorian Government.