基于高性能并行机消声数值模拟实验校验分析  

Verification analysis of noise-eliminating numerical simulation experiment based on high performance parallel machine

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作  者:吕福祥 魏志勇[2] 陈绍杰[3] 

机构地区:[1]徐州汇通科技开发有限公司,江苏徐州221000 [2]北京市劳动保护科学研究所,北京100054 [3]华北科技学院安全工程学院,北京东燕郊101601

出  处:《华北科技学院学报》2013年第4期68-72,共5页Journal of North China Institute of Science and Technology

基  金:国家自然科学基金资助(50974061);河北省自然科学基金资助(E2009001420)

摘  要:在利用有限元和边界元模拟消声器消声效果时,常用的商业模拟软件SYSNOISE和ANSYS是在单机上运行的(不能直接在并行机上运行),由于数值模拟量大,在微机上有时十几天甚至二十几天也算不出一个精确解。利用32台商用微机建造高性能并行机,用它作消声器消声效果的数值模拟(仿真);同时把有限元和边界元模拟软件改造成为能够在MPI(message passing interface)并行环境下运行的程序,以便节省数值模拟成本。通过相关数据模拟实验数据可靠,该高性能并行机的计算速度是单台微机的25~30倍,说明高性能并行机消声数值模拟结果是可行的。When the finite element and boundary element are used to simulate the effect of muffler, commercial simulation soft- ware SYSNOISE and ANSYS commonly used run on a single computer (namely not directly run on the parallel machines), some- times an accurate solution can' t be obtained for days or even 20 days because of a large amount of numerical simulation. A paral- lel machine with high- performance, which is built from 32 commercial computer, is used for the numerical simulation of the muffler effect. At the same time, the finite element and boundary element simulation software are transformed into programs which can run in the MPI (message passing in interface) parallel environment in order to reduce the cost; numerical simulation. The data is reliable through data simulation experiment, the computing speed of the parallel computer with high - performance is 25 30 times of the single computer, which shows that numerical simulation resuhs of the parallel machine with high performance on noise -elimination is feasible.

关 键 词:数值模拟 实验 消声器 

分 类 号:TB353.2[一般工业技术—材料科学与工程]

 

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