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临近空间飞行器的研制面临许多复杂的问题和挑战,涉及总体、气动、结构、控制、防热、动力等多个学科和专业领域的相互作用、高度耦合的子系统。全系统、全流程的仿真验证与性能评估能够为设计工作提供重要依据,缩短研制周期。而气动、结构、防热等专业的仿真建模和模型解算基于有限体积法或有限元方法,依赖于不同的工具软件,且网格的划分方法不同。本文研究了临近空间高超声速飞行器多物理场耦合建模方法,研究并实现了异构网格耦合界面之间与耦合域之间的信息传递方法,从而实现了临近空间高超声速飞行器的多物理场耦合建模与仿真。
The development of near space vehicles faces many complex problems and challenges, involving highly interacting and highly coupled subsystems in a wide range of disciplines and fields of expertise, including aerodynamics, aerodynamics, structure, control, thermal protection and motivation. System-wide, whole process simulation and performance evaluation can provide important basis for design work, shorten the development cycle. The aerodynamic, structural, thermal and other professional simulation modeling and solution based on the finite volume method or finite element method, relies on different tools, and the division of the grid is different. In this paper, the multiphysics coupled modeling method of the near space hypersonic vehicle is studied, and the method of information transfer between the coupling interfaces and the coupling domains of the heterogeneous mesh is studied and realized. The multiphysics of the near space hypersonic vehicle Coupling Modeling and Simulation.