一种易于并行求解Euler方程组的分区技术

在具有复杂边界的计算区域内，求解偏微分方程组时，经常需要分区和并行计算，分区方法直接关系到数值计算的并行化程度，本文在应用时间算子分裂方法求解Euler方程组的过程中，提出了一种非常容易实现并行化计算的分区技术。

A divided-zone method for parallel computation of Euler equations

Divided-zone technology is always needed in CFD parallel computation, particularly for those problems with complex geometry flow fields. The properties of divided-zone determine the realization of parallel calculation, as well as the CPU time consumed by the calculation. In this paper, a new divided-zone method was brought forward firstly. Different zone decomposition were use for the calculation in x and y directions, so this method can be applied to CFD problem solution with the time fractional calculation technology. Using this method the calculation need not pay particular attention to the data transfer process between conjoint zones as needed by traditional divided-zone method. Then five cases were calculated to implement this divided-zone method. Numerical results were also compared with experimental results to make verification and validation. The nice agreement shows that this method is reasonable and valid. This method can be easily applied to solve inviscid CFD problems with parallel computation technology.