平行壁間にある直列2角柱まわりの非定常流の数値解析

概要

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Numerical simulation was made for flows around two square cylinders set tandem in the middle of a channel between two parallel walls. The finite difference method was applied to the two-dimensional Navier-Stokes equations given in the stream function-vorticity formulation. For flows in a multiply-connected region like this, the value of the stream function on each cylinder cannot be given a priori. A method proposed previously by the authors was adopted to determine this value based on the circulation flowing out across the control surface enclosing the two cylinders An additional procedure was introduced to divide the circulation between the two cylinders, based on the cross-produced features of experimental results; as the distance between the two cylinders exceeds some value, the flow pattern changes markedly.
一般社団法人日本機械学会の論文
1989-06-25