摘要
由于高/超高增压比需要,民用航空发动机转子级数达到10级及以上,数值计算规模在百万自由度以上,需通过并行计算提高设计效率。针对民用航空发动机转子的并行数值计算方法开展研究,从区域分解模式、并行计算模式角度进行分析,结果表明:采用基于图理论的分区方式优于基于贪婪法的分区方式;相对于共享内存式并行计算模式,采用分布内存式并行计算模式可获得更短的计算耗时;针对百万自由度级民用航空发动机转子的并行计算,采用基于分布内存式并行计算模式、基于图理论的分区模式、计算核数为16核时,可以获得最佳并行计算效果。确定了针对百万自由度计算规模的民用发动机转子的最优并行计算配置,为实现民用发动机转子的快速设计提供了参考。
Due to the need of high/ultra-high pressure ratio,the rotor stage of civil aero-engine needed to reach10 or more,and the numerical calculation scale was more than one million degrees of freedom,so the design efficiency needed to be improved through parallel calculation.Aimed at the research on parallel numerical calculation method of civil aero-engine rotors,it was analyzed from the aspect of domain decomposition mode and parallelization computing model.The results showed that partitioned mode based on cognitive map theory was better than that based on greedy method.Compared with parallelization computing model of shared memory type,parallelization computing model with distributed memory could get shorter computing time,parallelization computing model aimed at civil aero-engine rotors million degree of freedom could get the best parallel computing effect with parallelization computing model of distributed memory,partitioned mode based on cognitive map theory,computing core number of 16.It was decided that the best parallel computing configuration aimed at civil aero-engine rotors of millions of degrees of freedom calculation scale,which provided the reference for rapid design of civil aero-engine rotors.
作者
王小庆
胡文韬
WANG Xiaoqing;HU Wentao(China Aero Engine Commercial Aero-engine Co.,Ltd.,Shanghai 200241,China)
出处
《新技术新工艺》
2022年第2期39-42,共4页
New Technology & New Process
关键词
民用航空发动机
转子
并行计算
分区模式
并行计算模式
数值计算
civil aero-engine
rotors
parallel computing
decomposition mode
parallel computing mode
numerical calculation
