著者

中島 求 江尻 祐介

出版者

一般社団法人 日本機械学会

雑誌

年次大会

巻号頁・発行日

vol.2011, pp._J053014-1-_J053014-5, 2011

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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.