کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661008 1458155 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temperature wall modelling for large-eddy simulation in a heated turbulent plane channel flow
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Temperature wall modelling for large-eddy simulation in a heated turbulent plane channel flow
چکیده انگلیسی
Industrial flows are often wall-bounded, characterized by a high Reynolds number turbulence and a strong unsteadiness. Large-eddy Simulations applied to this kind of flows require a heavy mesh resolution which is out of reach of the nowadays computational power. Wall models are usually used to alleviate this constraint. However, very few of them are dedicated to the temperature field. Besides, most of these wall models are based on equilibrium laws which are not able to take into account the unsteadiness of the flow in the near-wall region. In this study, an original thermal wall model, inspired from the TBLE wall model of Balaras et al. [E. Balaras, C. Benocci, U. Piomelli, Two-layer approximate boundary conditions for large-eddy simulations, AIAA J. 34 (6) (1996) 1111-1119], is developed and implemented in the CEA (French Atomic Center) Trio_U code and assessed on a heated and turbulent plane channel flow configuration. The investigated friction Reynolds numbers are 395, 1020 and 4800, and the Prandtl number is taken equal to 0.71.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 21–22, October 2007, Pages 4360-4370
نویسندگان
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