A patch-based COIL’s parallel calculation using multiblock structured mesh
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摘要: 为实现氧碘化学激光器(COIL)喷管流场大规模数值模拟,采用VICON程序中的基本方程与数值算法,应用JASMIN框架中的基本数据结构网格片,以及多块结构网格拼接并行算法,发展了三维多块COIL并行模拟程序。数值实验结果展示了该并行模拟程序的正确性及可扩展性,并在2048个处理器核上模拟450万网格单元算例,加速比超过420。Abstract: In order to achieve large-scale numerical simulation of chemical oxygen-iodine laser(COIL) flow, a three-dimensional COIL multiblock parallel simulation code is developed. In this code, the basic equations and numerical algorithms of VICON code are adopted, and the patch-based data structure and the parallel algorithm for multiblock structured mesh of JASMIN infrastructure are used. The simulation results demonstrate the accuracy and scalability of the parallel simulation code. In the simulation example with 4.5 million meshes in 2048 CPU cores, the speedup of the code is higher than 420.
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