Biological simulation apparatus, biological simulation apparatus control method, and biological simulation apparatus control program

摘要

It enables highly accurate fluid-structure interaction simulation of a living organ having a part with deformation that is difficult to track the boundary surface. The calculation unit (12) represents a structural region in which a tissue of a living organ is present by a structural mesh model (2) by Lagrange notation, and represents a fluid region in which a fluid in the living organ is present by an ALE fluid mesh model by ALE notation ( 3). The computing unit (12) deforms the structural mesh model (2) as the simulation progresses, but between the region where the part other than the specific part (2a) of the living organ in the structural region exists and the fluid region. The ALE fluid mesh model (3) is deformed and tracked so that there is no overlap with a gap or a structural mesh at the first boundary surface (4) of the first boundary surface (4), while a specific part (2a) in the structural region exists. For the second boundary surface (5) between the region and the fluid region, the fluid structure coupled simulation is executed by capturing the position with reference to the ALE fluid mesh model (3).