弾性振動平板まわりの流動解析 : たわみを含む連成を考慮したアプローチ

概要

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A flexible vibrating plate with distortion, fluid transport system of comparatively simple structure, accelerates surroundings fluid locally. However, it is not well known how the vibrating plate with deflection drives the fluid around it in the CFD field. Therefore, a practical finite-difference method that is able to handle such complicated phenomenon is desired strongly. In the present study we have not used the ALE method. which is often applied these problems. All terms of NS equation are assigned by the velocity which is observed from the grid on the moving mesh in this method. In addition, we used the new mesh generation technique because the solver needs quick response. As the mesh is moving with the elastic plate, we call this Elastic Mesh Generation (EMG) method. As the results, this solver which indicated good agreement between the experiment and the calculation can be used as a practical tool to predict the velocity field near the plate and the reacting force from the fluid to the plate.
1998-11-25