Conference Paper High-speed computation and experiment on added-mass and viscous-damping forces acting on various oscillating 3D objects

Tanaka, Ryuta  ,  Onishi, Hajime  ,  Shimohara, Hideki  ,  Tanigawa, Hirochika  ,  Hirata, Katsuya  ,  田中, 隆太  ,  大西, 玄  ,  下原, 秀基  ,  谷川, 博哉  ,  平田, 勝哉

In many fluid-structure-interaction problems, the added mass is one of important interests. In the present study, we propose a simple and efficient method to specify fluid-force coefficients of a three-dimensional oscillating object in viscous fluid. The solving method is based on a discrete singularity method DSM. Then, we apply the DSM to some three-dimensional basic objects such as square-cross-section cylinders with various aspect ratios. Furthermore, we conduct experiments, and reveal the fluid-force coefficients of them comparing between computations and experiments, which show good agreement.
Meeting Information: First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan
Physical characteristics: Original contains color illustrations
形態: カラー図版あり

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