k-εモデルを用いての二次元車体周りの乱流予測

概要

論文の詳細を見る
In order to simulate an aerodynamics of a road vehicle, some approaches have been examined by use of the Navier-Strokes equation and turbulent models, with the increase of the computer capacity. But in these approaches have been examined by use of the Navier-Stokes equation and turbulent models, with the increase of the computer capacity. But in these approaches these approaches there exist some problems, that are the stability of calculation, the choice of turbulent models, the definition of boundary conditions and so on. For the first step, this paper predicts two dimensional unsteady incompressible viscous Flow around a road vehicle with a code using the finite difference method, the κ-εturbulent model, and rectangular meshes. It is shown that the computation results are good agreement in the distributions of the surface static pressure with the two dimensional experimental data, and that these predictions are affected by the mesh size and boundary conditions of turbulent energy and turbulent dissipation ratio.
一般社団法人日本機械学会の論文
1985-06-25