不同湍流模型下旋转叶片气固耦合动力学特性的研究

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (11) : 46-50.

论文

不同湍流模型下旋转叶片气固耦合动力学特性的研究

谭祯1，2，李朝峰1，太兴宇1，闻邦椿1

作者信息 +

Research on Dynamic Characteristic Analysis of Rotating Blades by Gas-Structure Interaction of Various Turbulence Models

TAN Zhen1,2 LI Chao-feng1 TAI Xing-yu1 WEN Bang-chun1

Author information +

文章历史 +

摘要

本文对轴流式压气机内旋转叶片在不同湍流模型的气固耦合作用下的动力特性进行了研究。利用FSI（fluid-structure interaction）的双向顺序耦合算法，采用CFX和ANSYS对压气机内气体和旋转叶片分别计算，并通过迭代求解，获得叶片在气流作用下的动力学响应。为了研究耦合场内对叶片动力特性的影响，本文对某一级转子叶片进行流固耦合计算，由于在模拟流场计算中，不同的湍流模型对计算结果影响较大，采用3种湍流模型：标准κ-ε湍流模型(standard κ-ε)、重正化群κ-ε湍流模型（renormalization group κ-ε，RNG κ-ε）和大涡湍流LES模型（Large eddy simulation），获得了叶片在瞬态流场变化下的动力特性，并比较了不同湍流模型对计算的影响，为工程上对压气机内转子工作特性的分析提供一个可行的方法。

Abstract

In this paper the dynamic characteristics of rotating blades in axial-flow compressor by gas-structure interaction of various turbulence models were studied. Two-way order coupling algorithm of fluid-structure interaction was used to compute gas and rotating blades of compressor with CFX and ANSYS, the dynamics responses of blades in aerodynamic forces were obtained by iterative solving. A rotating blade flow channel model was established for fluid-structure interaction calculation, because of different turbulence models have great influence on simulate flow field, three turbulence models were used to discuss influence of coupling field on blades dynamic characteristic. The three turbulence models were standard κ-ε model, renormalization group κ-ε model and large eddy simulation model. In this paper the dynamic characteristics of blades in transient flow field with various turbulence models were obtained, a feasible method was provided for the engineering to estimate and research the performance characteristics of rotating blades in compressor.

导出引用

谭祯;李朝峰;太兴宇;闻邦椿. 不同湍流模型下旋转叶片气固耦合动力学特性的研究[J]. 振动与冲击, 2013, 32(11): 46-50

TAN Zhen; LI Chao-feng TAI Xing-yu WEN Bang-chun. Research on Dynamic Characteristic Analysis of Rotating Blades by Gas-Structure Interaction of Various Turbulence Models[J]. Journal of Vibration and Shock, 2013, 32(11): 46-50