谐波平衡法在叶轮机非定常数值模拟中的应用  

Application of Harmonic Balance Method in Unsteady Numerical Simulation of Turbomachinery

作　　者：张恒铭 唐弋棣 卫海洋[3] 林彬彬 ZHANG Heng-ming;TANG Yi-di;WEI Hai-yang;LIN Bin-bin(Aviation Engineering College,Civil Aviation Flight University of China,Guanghan 618300,China;L.A.Turbine,Valencia 91355;Beijing Power Machineries Institute,Beijing 100074,China)

机构地区：[1]中国民航飞行学院航空工程学院,广汉618300 [2]L.A.Turbine涡轮机械公司,瓦伦西亚91355 [3]北京动力机械研究所,北京100074

出　　处：《科学技术与工程》2020年第13期5403-5408,共6页Science Technology and Engineering

基　　金：中国民用航空飞行学院科学研究基金(J2018-09);国家自然科学基金(11602293);四川省科技计划(2018JY0177)。

摘　　要：为解决常规叶轮机非定常数值模拟的高耗时问题,引入谐波平衡方法并发展了对应的隐式迭代算法,实现了高效的叶轮机非定常数值模拟。在此基础之上,以某对转风扇为研究对象,考察了谐波平衡方法在叶轮机非定常数值模拟中的应用。通过与常规的时域非定常计算结果对比,发现谐波平衡法精确地捕捉到了对转风扇的排间干扰信息,能够很好地刻画出上游尾迹在下游叶片通道中的传播过程,且采用3个谐波数即可满足大多数的工程应用要求。To solve the problem of high time-consuming of conventional unsteady numerical simulation of turbomachinery,a high-efficient unsteady numerical calculation of turbomachinery was achieved by the harmonic balance method and the corresponding implicit iterative algorithm was developed.Taking a counter-rotating fan as the research object,application of the harmonic balance method in unsteady numerical simulation of turbomachinery was investigated.By comparing the flow field of the time-domain unsteady calculation,it was found that harmonic balance method could capture the row-to-row unsteady disturbance accurately and well describe the wake transportation in the downstream blade passage,and using three harmonic waves was enough for most engineering applications.

关 键 词：谐波平衡法 计算流体力学 非定常流 叶轮机 

分 类 号：V235.131[航空宇航科学与技术—航空宇航推进理论与工程]