κ-εモデルを用いた大規模三次元問題の有限要素法乱流解析

概要

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This paper describes the turbulent flow analysis technique that is suitable for three-dimensional large scale problems. The k-ε turbulence model and the finite element method are used with low order elements. The coefficient matrices are evaluated by one-point quadrature with hour-glass control in order to reduce the computaional storage and CPU cost. The pseudo-time integration scheme based on the velocity correction method is utilized to obtain a steady-state solution. For the verification of this FEM program, a two-dimensional plenum flow is simulated and compared with the experiment. As an application to three-dimensional problems, the turbulent flows in the upper plenum of the Fast Breeder Reactor (FBR) are calculated for various boundary conditions.
社団法人日本機械学会の論文
1988-02-25