Immersed Boundary法による脂質二分子膜の変形計算の試み(OS16d 生体力学における新しい計算解析手法)

概要

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Capsules enclosed by a lipid bilayer can change their shapes in response to local flows under mechanical conditions which keep. Their volume and surface area constant. In our study, a 2-D simulation was conducted to investigate deformations of the lipid bilayer capsule. Immersed-Boundary method(IBM) would be one of candidates to Simulate the deformable capsule. However, IBM has some weak points about its accuracy; for example, fluids leak through its interface from a high pressure side to the lower side. Thus, we adopted Immersed Interface method(IM) proposed by Leveque et al. To verify our IIM code and compare the efficiency of IIM against IBM, we carried out to simulate the -shape oscillatory, dumping behavior of the swelled elastic capsule by using IIM and IBM. From an analysis of dumping oscillation with different grid resolutions, the validity of our scheme has been shown.
一般社団法人日本機械学会の論文
2004-11-17