スプール弁絞りからの二次元付着噴流 : 離散渦法による数値実験

概要

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A discrete-vortex method is employed to simulate a two-dimensional reattaching jet issuing from the metering orifice of spool valves. The process of reattaching jet formation is investigated in detail. The behavior of the vortex shedding near the orifice outlet is discussed by comparing the simulated results with the potential jet solution obtained by von Mises and the flow visualization results. A prediction of the vortex pattern of the reattaching jet and the pressure distribution is undertaken. The simulated results of the pressure distribution on the wall are found to agree with the experimental results. In the present simulation, the potential solution in the absence of a discrete vortex is obtained numerically by solving Laplace equations and a numerical grid is used to simulate the jet by a discrete-vortex method.
一般社団法人日本機械学会の論文
1988-11-25