NEAR-WALL TURBULENCE MODEL AND ITS APPLICATION TO FULLY-DEVELOPED TURBULENT CHANNEL AND PIPE FLOWS

被引:14
作者
KIM, SW
机构
[1] Institute of Computational Mechanics in Propulsion, NASA/Lewis Research Center, Cleveland, OH, 44135
关键词
D O I
10.1080/10407799008961735
中图分类号
O414.1 [热力学];
学科分类号
摘要
A near-wall turbulence model and its incorporation into a multiple-timescale turbulence model are presented. The near-wall turbulence model is obtained from a k-equation turbulence model and a near-wall analysis. In the method, the equations for the conservation of mass, momentum, and turbulent kinetic energy are integrated up to the wall, and the energy transfer and the dissipation rates inside the near-wall layer are obtained from algebraic equations. Fully developed turbulent channel and pipe flows are solved using a finite element method. The computational results compare favorably with experimental data. It is also shown that the turbulence model can resolve the overshoot phenomena of the turbulent kinetic energy and the dissipation rate in the region very close to the wall. © 1990 by Hemisphere Publishing Corporation.
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页码:101 / 122
页数:22
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