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Numerical Simulation of Turbulent Heat Transfer in a Channel with One Wavy Wall  

Park Tae-Seon (경북대학교 기계공학부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.9, no.3, 2005 , pp. 49-59 More about this Journal
Abstract
Turbulent heat transfer over a fully-developed wavy channel is investigated by a turbulence model. The nonlinear k- f - f$_{ model of Park et at.[1] is slightly modified and their explicit algebraic heat flux model is employed. The Reynolds number is fixed at Re$_{b}$=6760 and the wave configuration is varied in the range of 0 $\leq$ $\alpha$/$\lambda$$\leq$0.15 and 0.25 $\leq$A/H$\leq$4.0. In order to verify model performances, a large eddy simulation is performed for the selected cases. The model performance is shown to be generally satisfactory. By using k- $\varepsilon$ - f$_{ model, the enhancement of heat transfer and the characteristics of turbulent flow in wavy wall are investigated. Finally, the influence of wavy configuration on heat transfer is scrutinized.
Keywords
Wavy Wall; Nonlinear k- Model; Explicit Heat flux Model; Large Eddy Simulation;
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