A324 サボニウス風車まわりの流れと動特性

概要

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In this study, the flows around Savonius rotors are numerically simulated in order to estimate the running performance of the rotors. Two grid systems are employed. One is the grid system, which covers whole computational region without domain decomposition. The other is generated as follows : The computational region is divided into two subregions and the grid system based on the polar coordinate is generated separately in each region and they are connected. Rotating coordinate system is used to represent the rotation of the rotors. The numerical method used in this study is fractional time step method with generalized coordinate system. The effects of the tip speed ratio as well as that of the gap between the brades on the perfomance are investigated. Although main computations are performed by assuming that the flow is two dimensional, some three-dimensional computations are also done in order to see the effect of the end plate.
日本流体力学会の論文
2000-07-25