非线性谐波法的进一步校验分析

赵军; 刘宝杰

非线性谐波法的进一步校验分析

赵军,
刘宝杰

北京航空航天大学能源与动力工程学院, 北京 100083

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出版历程
- 收稿日期: 2007-04-10
- 修回日期: 2007-06-11
- 刊出日期: 2008-04-28

Further verification of nonlinear harmonic method

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083

摘要

摘要: 基于定常Denton程序发展了二维定常、非定常、非线性谐波法计算程序,以二维跨声压气机叶栅为例,通过详细对比其定常、非定常和非线性谐波法的计算结果,包括确定应力场和叶片表面速度分布等,验证了非线性谐波法具有建模精度较高的优点的同时,也分析了该方法的不足,包括一些难以克服的主要误差来源,以及计算时间较长等弱点;并指出了掺混面处理对于非线性谐波法的重要性.
- 航空、航天推进系统 /
- 确定应力 /
- 非线性谐波法 /
- 非定常计算
Abstract: A two-dimensional steady,unsteady and nonlinear harmonic method(NHM) RANScode was developed based on Denton steady code.Then the code was used to simulate a two-dimensional transonic compressor cascade by the above three methods and the results were compared on deterministic stress fields,blade surface velocity and other aspects.The comparison indicates that NHMpresents high precision on modeling deterministic stresses and mixing-plane treating plays an important role in the simulations.The shortcomings of NHMwere also discussed,including main unconquerable origins of modeling error and long computational time.
- aerospace propulsion system /
- deterministic stresses /
- nonlinear harmonic method /
- unsteady simulation

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参考文献(17)

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