BIOMETRIC SIMULATION DEVICE, METHOD FOR CONTROLLING BIOMETRIC SIMULATION DEVICE, AND PROGRAM FOR CONTROLLING BIOMETRIC SIMULATION DEVICE

摘要

There is enabled an accurate fluid-structure interaction simulation on a biological organ having a deformable site that has an interface difficult to track. An operation unit (12) represents a structure domain in which tissues of a biological organ exist by using a structure mesh model (2) based on a Lagrange description method and a fluid domain in which fluid inside the biological organ exists by using an ALE fluid mesh model (3) based on an ALE description method. In addition, when performing a fluid-structure interaction simulation, the operation unit (12) deforms the structure mesh model (2) along with the progress of the simulation. Specifically, the operation unit (12) deforms the ALE fluid mesh model (3) in such a manner that no gap is formed on a first interface (4) located between a domain in which a site other than a certain site (2a) of the biological organ in the structure domain exists and the fluid domain or no overlap is formed with the structure domain, to track the first interface (4). The operation unit (12) captures a position of a second interface (5) located between a domain in which the certain site (2a) in the structure domain exists and the fluid domain by using the ALE fluid mesh model (3) as a reference.