符号表 Notation

以下是本论文中使用的符号的非详尽列表。我们将采用粗体字符表示矢量的惯例。

欧拉描述

Explanation中文解释
An open subset of 背景区域
boundary of 区域边界
Velocity field速度场
Pressure field压强场
Unit vector normal to 单位外法向
Divergence of 速度散度
Gradient of 速度梯度
Laplacian of u, defined by 拉普拉斯算子
-inner product on 内积
Norm defined by the -inner product on if 范数
Euclidian norm欧几里得范数
Eulerian coordinates欧拉坐标

拉格朗日描述

代数

Explanation中文解释
雅可比矩阵
形变梯度

参数

Explanation中文解释
(Dynamic) Viscosity动力粘性
Density密度
Kinematic viscosity, defined as nu:=mu//rho运动粘性
Timestep时间步长
Reynolds number雷诺数
Discretization parameter1空间离散参数

矩阵的性质

Explanation中文解释
Space of square-integrable functions on 上的平方可积函数
Space of -functions on with derivatives up to order which are also in 空间
Space of functions in which equal zero on 空间
Dual space of 的对偶空间

固体力学

Explanation中文解释
The Cauchy stress tensor柯西应力张量
the first Piola–Kirchhoff stress tensor第一PK应力张量
Strain energy density function应变能密度函数
Elastic potential energy function弹性势能函数
Kinetic energy function动能函数
A region in three-dimensional Euclidean point space(), called configuration of 固体的构型
A specific configuration of 参考构型
Current configutation of 现时构型,当前构型
A body, considered as a set of elements, or particles, or material points, whatever固体
bijection mapping between and
Coordinates of material points at reference configuration固体粒子在参考构型的坐标
tcurrent time当前时间
total time interval总时间

多孔弹性体

浸没边界法

prolongation operation, distribution operator延拓算子
restriction operator, interpolation operator插值算子

Footnotes

  1. Discretization parameter, proportional to the length of the longest edge of an element in a partition of