【作者】 刘大伟； 涂梦蕾； 彭鑫； 陈德华；

【Author】 Liu Dawei;Tu Menglei;Peng Xin;Chen Dehua;State Key Laboratory of Aerodynamics;High Speed Institute of China Aerodynamics Research and Development Center;

【机构】 空气动力学国家重点实验室； 中国空气动力研究与发展中心高速空气动力研究所；

【摘要】 本文提供了一种在跨声速风洞中修正试验模型变形影响的方法。某超临界机翼在不同速压下的变形量通过ETW风洞的光学测量技术获得。基于这些测得的变形量,对变形模型进行了重构,并基于结构网格的变形技术重新生成了计算网格。随后,采用数值模拟方法对变形模型进行了模拟,并与试验结果相比,取得了较好的一致性。通过试验模型变形前后的数值模拟之差,即可获得模型变形影响量。本文的修正方法可用于风洞试验数据的模型变形影响修正。更多还原

【Abstract】 This paper presents a method to correct test model deformation effects due to aerodynamic loads in transonic wind tunnel.Deformation for a supercritical wing test model was measured under variation of dynamic pressure in the European Transonic Wind tunnel(ETW) utilizing the Stereo Pattern Tracking(SPT) system.Deformed model mesh was generated by the structure grids deformation technology developed in this paper,and numerical results of rigid and deformed models were achieved based on the RANS solver.Then,effects of model deformation were corrected by subtracting the computational longitudinal aerodynamic coefficients of original model from those of deformed one.Results indicated that a good correlation between experimental data and numerical results of deformed model was achieved,validating the reliability of numerical method developed to simulate model deformation.It is also suggested that the method developed in this paper could be used to correct test model deformation for original wind tunnel data.更多还原