Aeroelastic-Acoustics Numerical Simulation Research
The generation of aerodynamic noise of aircraft in flight is due to dynamical system and aerodynamic.The response of aircraft subjected to High acoustic loads and aerodynamic loads can produce fatigue and damage.In this paper a new Aeroelastic-Acoustics which adds acoustic loads in aeroelastic is presented.The emphasis of the study is the discipline of displacement and load of the flexible structure under the unsteady aerodynamic, inertial, elastic and aero-acoustic.The CFD/CSD/CAA coupling is used to simulate rockets cabin.Sound generated by a rocker is predicted numerically from a Large Eddy simulation (LES) of unsteady flow field.The Lighthill acoustic analogy is used to model the propagation of sound.The structural response of rocket cabin was given.The boundary-layer transition on the pressure side of the cabin is visualized, by plotting to better illustrate the essential interaction between fluctuating pressure and structure.CFD/CSD/CAA coupling compute method is validated in low and middle frequency.
Aeroelastic-Acoustic LES CFD/CSD/CAA coupling Multidisciplinary
Xi Pei Min Xu Dong Guo
College of astronautics,Northwestern polytechnical University,Xian 710072,china
国际会议
上海
英文
500-504
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）