移動境界流体解析を用いたオタマジャクシの遊泳シミュレーション  [in Japanese] Simulation of Tadpole Swimming by CFD with Moving Boundaries  [in Japanese]

Visual simulation of tadpole swimming was performed in this paper. To increase the reality of visualization, computational fluid dynamics with moving boundaries was first performed to estimate accurate fluid force around a tadpole, and then simulation of rigid body motion with calculated fluid force was carried out separately. The finite element analysis with smoothing and remeshing schemes were implemented to well control the fluid mesh, following the motion of tadpole. Numerical results were visualized with texture mapping techniques. The present approach enables realistic visualization of tadpole swimming. Through the numerical examples, the implemented smoothing and remeshing schemes were robust and they can precisely describe the large deformation of tadpole's motion.