3D vesicle dynamics simulations with a linearly triangulated surface
3D vesicle dynamics simulations with a linearly triangulated surface
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DOI：
10.1016/j.jcp.2010.10.021
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发表时间：
2011-02
期刊：
影响因子：
--
通讯作者：
G. Boedec;M. Leonetti;M. Jaeger
中科院分区：
文献类型：
--
作者：
G. Boedec;M. Leonetti;M. Jaeger
在过去的几年里，生物膜的模拟引起了越来越多的兴趣。这些膜的特殊性对数值提出了新的挑战。特别是，囊泡动力学受到弯曲力以及表面不可压缩性约束的控制。描述了计算分段线性三角表面网格上的弯曲力密度的方法。该方法与内部和外部流体的边界元法求解器相结合，以计算外部流动下的囊泡动力学。表面不可压缩性约束通过投影算子的构造来满足。
Simulations of biomembranes have gained an increasing interest in the past years. Specificities of these membranes propose new challenges for the numerics. In particular, vesicle dynamics are governed by bending forces as well as a surface incompressibility constraint. A method to compute the bending force density resultant onto piecewise linearly triangulated surface meshes is described. This method is coupled with a boundary element method solver for inner and outer fluids, to compute vesicle dynamics under external flows. The surface incompressibility constraint is satisfied by the construction of a projection operator.