軸対称衝突噴流の衝突領域における数値解析

概要

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An axisymmetric impinging jet onto a flat wall has studied using a numerical model of incompressible viscous steady flow, especially close to the impingement wall. The Navier-Stokes equations are solved in terms of stream function and vorticity with the combined upwind and central finite difference method of an alternating direction implicit way. Distributions of velocity and pressure of the impinging jet are calculated at several large Reynolds numbers using non-uniform grids in the axial direction of the jet for three kinds of fully developed velocity profile at the inlet of the impingement region. Calculated distributions of velocity and pressure agree well with experimental data of impinging air jets. More over, the effect of the inlet velocity on the flow and the flow structures of impinging jets are discussed.
一般社団法人日本機械学会の論文
1999-09-25