磁浮飞行风洞动模型气动结构耦合仿真评估  

Simulation evaluation of aero-structure interaction for moving model in maglev flight tunnel

作　　者：高兴龙 王超[1,2] 符澄[1,2] 孙运强[1,2] 寇杰[1,2] GAO Xinglong;WANG Chao;FU Cheng;SUN Yunqiang;KOU Jie(State Key Laboratory of Aerodynamics,Mianyang 621000,China;Facility Design and Instrumentation Institute,China Aerodynamics Research and Development Center,Mianyang 621000,China)

机构地区：[1]空气动力学国家重点实验室,绵阳621000 [2]中国空气动力研究与发展中心设备设计与测试技术研究所,绵阳621000

出　　处：《实验流体力学》2023年第3期59-68,共10页Journal of Experiments in Fluid Mechanics

摘　　要：磁浮飞行风洞是一种“体动风静”的新概念空气动力试验设备。模型在长直线密闭管道中高速运动过程的气动特性复杂,会对周围流场产生强烈的扰动,涉及到波系传播和气动与结构之间的单向耦合问题。本文从气动结构耦合仿真的角度,对磁浮飞行风洞试验过程中模型高速运动所产生的非定常气动特性进行了分析和评估,基于一种新型时空守恒元和解元(CE/SE)方法耦合求解了管道内模型周围的三维可压缩流场变化,获得了模型高速运动过程的气动力参数变化、波系传播特性及管道内压力分布,并开展了多孔介质消波材料参数仿真设计分析,为磁浮飞行风洞消波措施设计等提供支撑。The maglev flight tunnel is a novel concept aerodynamics test facility,in which the high speed translation of the moving model in the long straight closed tunnel would induce extremely complicated aerodynamic characteristics.The motion of model’s fast acceleration,deceleration and constant speed moving have strong interference to the surrounding fluid field,causing wave propagation problems and the aero-structure single way coupling problems.The unsteady characteristics originated from the high speed moving of the model in the maglev flight tunnel are investigated and evaluated from the view of aero-structure coupling.Based on the new CE/SE method,the 3D surrounding compressible fluid of the moving model in tunnel is solved,and the aerodynamic parameters variations,wave propagation characteristics and the pressure distribution in the tunnel are obtained.Simulation design analysis of parameters for porous medium wave absorbing materials is conducted,which could provide a support for the key technical problems like wave absorbing construction design of the maglev flight tunnel.

关 键 词：磁浮飞行风洞 动模型试验 CE/SE方法 气动结构仿真评估 耦合 

分 类 号：V211.74[航空宇航科学与技术—航空宇航推进理论与工程]