基于流固耦合方法的跨声速叶片气动和强度性能研究

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (20) : 104-110.

论文

汪松柏1，李绍斌1,2,宋西镇1

作者信息 +

Investigations on Aerodynamic and Mechanical Performance of Transonic Blade Based on Fluid-Structure Interaction Method

WANG Song-bai1，LI Shao-bin1,2, SONG Xi-zhen1

Author information +

文章历史 +

摘要

为研究流固耦合对跨声速压气机叶片气动和强度性能的影响，采用商用软件ANSYS-CFX/Multiphysics研究了跨声速叶片在气动力和离心力共同作用下的气动性能变化规律，通过单向和双向两种耦合方法对比分析了叶片的强度性能。结果表明：叶片在气动力和离心力共同作用下，叶尖前缘变形量最大，气动性能与冷态叶片相比有明显变化，叶尖激波位置前移，堵塞流量增大。双向流固耦合与单向耦合相比，叶片的总体变形量增大约1.1%，最大等效应力增大0.8%左右。研究结果表明工程设计应采用双向流固耦合方法进行叶片气动性能设计和强度校核，以提高压气机的安全性和可靠性。

Abstract

In order to research the influence of the fluid-structure interaction for the aerodynamic and mechanical performance of the transonic compressor blade, A time domain two-way fluid-structure interaction numerical method with ANSYS-CFX/Multiphysics was applied to study the aerodynamic performance of transonic blade under aerodynamic and centrifugal forces. The mechanical performance was analyzed by comparing the results between one-way and two-way fluid-structure interaction methods. The results show that the maximum displacement of this blade appears at tip near leading edge, the blade deformation has significant effects on the aerodynamic performance in comparison with the cold blade, which makes passage shock wave position forward and choke mass flow rate increased. Comparing the results between one-way and two-way FSI numerical computation in mechanical performance, the amplitude of the overall blade deformation increases by 1.1%, and the maximum Von-Mises stress increases by 0.8%. The overall results indicate that the industrial practice should adopt a two-way fluid-structure interaction method to guide the aerodynamic design and check the strength, and to improve the safety and reliability of the compressor.

导出引用

汪松柏1，李绍斌1,2,宋西镇1. 基于流固耦合方法的跨声速叶片气动和强度性能研究[J]. 振动与冲击, 2016, 35(20): 104-110

WANG Song-bai1，LI Shao-bin1,2, SONG Xi-zhen1. Investigations on Aerodynamic and Mechanical Performance of Transonic Blade Based on Fluid-Structure Interaction Method[J]. Journal of Vibration and Shock, 2016, 35(20): 104-110

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