側壁付着形流体素子における乱流噴流の切換え機構の数値解析

概要

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The turbulent flow mechanism in a wall-attachment fluidic device was analyzed with numerical predictions. The computation was carried out with the finite difference method in conjunction with the k-ε turbulent model and the semi-implicit method for the pressure-linked equation. The computation procedure employed in this paper could define the boundary conditions definitively at the ports for input and output. The numerical solutions provide the velocity profiles, the pressure distributions, the turbulent energy distributions, and the energy dissipation rate distributions in the flow field. The switching flow rate obtained by the numerical computation was compared with that measured by experiment. It is found that the numerical predictions closely simulated the flow mechanism during the process of the jet switching in the device.
社団法人日本機械学会の論文
1989-08-25