CFD技术在航空工程领域的应用、挑战与发展

计算流体力学(CFD)技术在航空工程领域发挥着重要作用。总结了CFD技术在航空工程领域中的应用,系统阐述了气动设计、气动弹性、气动噪声、数字化飞行等多学科耦合计算领域对CFD技术的需求,结合实际工程应用分析了CFD技术面临的主要挑战。总结了近年来CFD技术在流动分离、边界层转捩、高精度方法和运动网格技术等领域取得的研究成果以及在气动特性评估、流动机理分析、气动设计、气动弹性、气动噪声等工程领域中的应用。进一步展望了CFD数值模拟未来的几个关键技术以及应用前景。

CFD technology in aeronautic engineering field: Applications,challenges and development

Computational fluid dynamics (CFD) technology has been playing an important role in the field of aeronautic engineering.In this paper,the applications of CFD technology are summarized,and the demands for CFD technology in multidisciplinary coupling problems are expatiated,including aerodynamic design,aeroelasticity,aerodynamic noise,and digital flight.The main challenges that CFD technology is faced with are analyzed through practical applications.Recent research works in flow separation,boundary layer transition,high-order scheme,grid deformation,and typical applications of aerodynamic performance evaluation,flow mechanism analysis,aerodynamic design,aeroelasticity,and aerodynamic noise are described.The key technologies and application prospects of CFD technology developments are then explored.