改定k-εモデルII

概要

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Revised k-ε models are proposed. Here,k is the turbulent energy, and ε the dissipation rate of kinetic turbulent energy. The proposed models are both widely applicable and are transferable to other two-equation models. These are so modeled that the diffusion term of the ε equation does not exert significant influence in the vicinity of the wall compared with production and dissipation terms. The model constants are estimated by using approximated solutions. Numerical examples, which give good agreement with the experimental results, including eddy viscosity distribution, are shown in the paper. It is also seen that the distribution of k has a small peak near the wall. This validiates that C_ν is nearly constant.
一般社団法人日本機械学会の論文
1987-12-25