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Study of modeling unsteady blade row interaction in a transonic compressor stage part 2： influence of deterministic correlations on time-averaged flow prediction

ISSN号：0567-7718
期刊名称：《力学学报：英文版》
时间：0
分类：V231.3[航空宇航科学与技术—航空宇航推进理论与工程;航空宇航科学技术] TB877[一般工业技术—摄影技术]
作者机构：[1]Group 404, National Key Laboratory of ScienceTechnology on Aero-Engine Aero-thermodynamicsSchool of Jet Propulsion,Beihang University, 100191 Beijing, China
相关基金：The project was supported by the National Natural Science Foun- dation of China （51006006, 51136003, 50976010, 50976009）, the National Basic Research Program of China （2012CB72 0205）, the Aeronautical Science Foundation of China （2010ZB51）, the 111 Project （B08009）, and the National Science Special Foundation for Post-doctoral Scientists of China （201104049）.

作者： Yang-Wei Liu Bao-Jie Liu Li-Peng Lu[1]

关键词：时间平均, 压气机, 跨声速, 定刀片, 流量预测, 建模, 多级压缩机, 平均流场, Unsteady , Blade row interaction , Compressor , Deterministic correlation , Average-passage equation system , CFD

中文摘要：

平均经过的方程系统(无尾猿) 由介绍需要被当模特儿关上方程系统的确定的关联(DC ) 在稳定的州的环境通过多级式的压缩机为不稳定的片排相互作用为财务提供一个严密数学框架。这研究的主要目的是提供卓见进 DC 特征和对无尾猿的平均时间的流动领域的 DC 的影响。部分地 2 这由二部合成的纸，平均时间的流动领域上的 DC 的影响系统地被学习。几平均时间的计算在一个接近音速的压缩机阶段为下游的定子与各种各样的边界条件和 DC 被进行，由采用部分地开发的 CFD 解答者 1 份这由二部合成的报纸。这些结果与平均时间的不稳定的流动领域和稳定的领域相比。学习显示环绕一般水准的 DC 能在压缩机在流动领域的 spanwise 再分配上考虑不稳定的效果的主要部分。而且，它证明确定的压力和确定的热含量流动是必要的复制平均时间的流动领域。

英文摘要：

The average-passage equation system （APES） provides a rigorous mathematical framework for account- ing for the unsteady blade row interaction through multistage compressors in steady state environment by introducing de- terministic correlations （DC） that need to be modeled to close the equation system. The primary purpose of this study was to provide insight into the DC characteristics and the in- fluence of DC on the time-averaged flow field of the APES. In Part 2 of this two-part paper, the influence of DC on the time-averaged flow field was systematically studied; Several time-averaging computations boundary conditions and DC were conducted with various for the downstream stator in a transonic compressor stage, by employing the CFD solver developed in Part 1 of this two-part paper. These results were compared with the time-averaged unsteady flow field and the steady one. The study indicat;d that the circumferential- averaged DC can take into account major part of the unsteady effects on spanwise redistribution of flow fields in compres- sors. Furthermore, it demonstrated that both deterministic stresses and deterministic enthalpy fluxes are necessary to reproduce the time-averaged flow field.

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