J053014 スイマーマネキンを用いた水泳時の人体に働く非定常流体力のモデル化([J05301]スポーツの流体力学)

概要

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In the previous study, the swimmer mannequin, which reproduces the 3D body shape of an athlete swimmer with high fidelity and can perform three degrees-of-freedom motion, was developed, and the fluid force acting on the swimmer mannequin was measured. In this study, the unsteady fluid force acting on the swimmer mannequin was modeled. The formulation of the swimming human simulation model SWUM, which the authors have already developed, was used for the fluid force model. Three fluid force coefficients in the model were determined using the optimizing calculation so that the discrepancy between the simulated fluid force and experimental one became minimum. Further, the unified coefficients were determined by taking the averages of the values for all the trials. Using the unified determined fluid force coefficients, the comparisons between the simulated fluid forces and the experimental ones were carried out. It was found that the simulation could reproduce the experimental characteristics with respect to the time fluctuation.
一般社団法人日本機械学会の論文
2011-09-11