基于CFD/CSD耦合的翼面抖振响应数值模拟研究  

Numerical Simulation of Wing Buffet Response Based on a CFD/CSD Coupling Method

作　　者：周迪[1] 张兴彬 郭同庆[1] 陆志良[1] ZHOU Di;ZHANG Xingbin;GUO Tongqing;LU Zhiliang(Key Laboratory of Unsteady Aerodynamics and Flow Control,Ministry of Industry and Information Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学非定常空气动力学与流动控制工信部重点实验室,南京210016

出　　处：《强度与环境》2024年第1期50-58,共9页Structure & Environment Engineering

基　　金：国家自然科学基金(12102187);江苏省高校优势学科建设工程资助项目。

摘　　要：发展一种考虑气动弹性效应的CFD/CSD耦合计算方法,对翼面抖振响应进行了数值模拟研究。针对抖振的发生往往伴随着较大尺度分离流动,采用脱体涡模拟方法提高湍流模拟的保真度。针对抖振响应模拟时间历程长、计算量大的特点,基于自主发展的动态网格自动化生成方法以及非定常流动和气动弹性高效求解技术,从而提高响应计算效率。分别对大迎角三角翼和超临界机翼进行了抖振响应模拟研究,通过与文献或试验结果的比较以及时频特性分析,验证了所发展方法在大迎角抖振和跨声速抖振响应预测中的可靠性和精确性。With consideration of aeroelastic effects,a computational fluid dynamics/computational structural dynamics(CFD/CSD)coupling method is developed for numerical simulation of wing buffet response.Because buffet often occurs along with large-scale flow separation,a detached-eddy simulation(DES)method is used to increase the fidelity of turbulence modeling.Considering the requirements of long-time buffet response simulation and large computational efforts,a self-developed automatic dynamic mesh deformation method and some efficient unsteady flow and aeroelastic modeling techniques are adopted for improving the computational efficiency.The present method is applied to simulate wing buffet response of a delta wing and a supercritical wing.By comparisons with experiment or other literatures and time-frequency characteristic analysis,the reliability and accuracy of the method in predicting buffet response at high angle of attack and transonic buffet response are verified.

关 键 词：翼面 抖振 气动弹性 计算流体力学 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程] V214.1