论文部分内容阅读
采用了Ｔａｙｌｏｒ－Ｇａｌｅｒｋｉｎ有限元法离散Ｎ－Ｓ方程；该法保留了高阶的空间离散精度，隐含了流线迎风的耗散作用．采用了压力校正法求解流场中各原始变量，推导了压力修正Ｐｏｉｓｓｏｎ方程的有限元离散格式．最后给出了二维不可压缩方腔流动计算结果．
The Taylor-Galerkin finite element method is used to discretize the N-S equation. This method preserves the high-order spatial discretization and implies the dissipative effect of the upwind streamline. The pressure correction method was used to solve the original variables in the flow field, and the discrete finite element method of pressure-modified Poisson’s equation was derived. Finally, two-dimensional incompressible square cavity flow calculation results are given.