Weiyu Zhanga
, Mo Yanga,*, Yuwen Zhangb
Frontiers in Heat and Mass Transfer, Vol.12, pp. 1-8, 2019, DOI:10.5098/hmt.12.18
Abstract The periodically fully-developed flow and heat transfer in channels with periodic semi-circular tube is studied numerically by the direct numerical
simulation (DNS), the large eddy simulation (LES), and the Reynolds stress model (RSM). When the Reynolds number is between 3000 and 25000,
the Nusselt number obtained by the RSM is closer to the experimental results than the results obtained from other turbulence models. The nonlinear
characteristics of flow and heat transfer is revealed based on the results of numerical simulation. When Reynolds number is high, the geometric structure
and boundary conditions of the channel are symmetric, but the flow field… More >
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