Parallel algorithm and software development for two-phase spray and combustion

被引：0

作者：

Peng Y. ^{[1
]}

Xiao Y. ^{[1
]}

Ming P. ^{[1
]}

机构：

[1] College of Power and Energy Engineering, Harbin Engineering University, Harbin

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2019年 / 40卷 / 11期

关键词：

Domain decomposition; Droplet tracking; GTEA; Multi-physics field coupling; Parallel computing; Spray and combustion;

D O I：

10.11990/jheu.201812010

中图分类号：

学科分类号：

摘要：

To improve the computational speed of large-scale two-phase spray combustion numerical simulation, this research focuses on the multi-physics field coupling software GTEA, and based on this software, the parallel algorithm and implementation model for the two-phase spray and combustion process are studied, and the corresponding computing module is developed. For Eulerian phase, several partitioning strategies such as simple, metis, and geometric methods are adopted, and sparse communication among processes is realized by mapping relations. For Lagrangian phase, the particle decomposition strategies of discrete droplet model are compared and analyzed. The faster fixed parameter tractable (FFPT) tracking algorithm is used to complete the transfer and tracking of particles among multiple processes. Through spray combustion simulation in constant volume bomb, the parallel calculation is proven to be capable of effectively accelerating the calculation speed while maintaining the same result of a serial calculation, and the acceleration efficiency is not less than 60%. © 2019, Editorial Department of Journal of HEU. All right reserved.

引用

页码：1851 / 1857

页数：6

共 10 条

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