ソース分布法と離散渦法を用いた流れ込みを伴う長方形柱まわりの流れの解析

概要

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A discrete vortex method combined with the source distribution method was applied to the flow analysis around a rectangular cylinder accompanied by through-flow. The effects of kinematic viscosity ν on drag coefficient and Strouhal number were investigated. The value ν of 0.00001m^2/s was the most appropriate one under our conditions. The ratio of vertical to horizontal length of a rectangular cylinder was changed as a calculational parameter. The drag coefficient C_D was in agreement with the reported results. The calculations of the through-flow into the rectangular cylinder were carried out under the same conditions as those in the experiments in a two-dimensional water pool. The calculated and experimental values were satisfactorily in agreement. Consequently, it is shown that our numerical method is very useful in calculating the through-flow into the body.
社団法人日本機械学会の論文
1990-10-25