改定k-εモデルの自由せん断乱流への適用 : 第1報,乱流噴流の解析的研究とモデル定数の評価

概要

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First a revised k-ε is applied to the grid turbulence to confirm the relations of model constants. As a result, it is found that the grid turbulence is well predicted by the standard and the revised k-ε model. So it is concluded that the relation of model constants is important only for the leading term of the model equations in the case of grid turbulence. Next, the similarity solution of the turbulent jet is investigated analytically. It is shown that the diffusion, dissipation and the advection terms are dominant in the center of the turbulent jet, and the diffusion term balances with the advection term at the shear layer. Model constants in the k equation are estimated using experimental data.
一般社団法人日本機械学会の論文
1989-02-25