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大型客机高速气动设计需融入型号的设计经验、准确的数值分析方法以及高效的全局优化流程。将型号研制积累的设计经验及准则与现有数值计算工具、优化算法和计算机硬件资源相结合,探索发展了基于CFD的大型客机气动优化设计综合方法,该方法系统综合全局优化与局部寻优、人工经验与数值优化、参数化方法和参数控制以及自动化网格生成等方法和技术,大幅提升了气动设计效率。同时,完善了工程中实用的大型客机高速气动设计方法和流程,设计过程中融入了气动、结冰、静气动弹性等多专业的综合约束,反映了机翼设计多学科综合的本质特征,有助于形成综合最优的设计方案。以大型客机的超临界机翼优化设计为例,叙述了其在高速气动设计工作中的应用。
Large passenger aircraft high-speed aerodynamic design needs to be integrated into the model design experience, accurate numerical analysis methods and efficient global optimization process. Combining the design experiences and guidelines accumulated by the model development with the existing numerical calculation tools, optimization algorithms and computer hardware resources, this paper explores and develops the comprehensive aerodynamic optimization design method for large-scale passenger aircraft based on CFD. The method integrates global optimization with local optimization, Artificial experience and numerical optimization, parameterization methods and parameter control, as well as automated grid generation and other methods and techniques have significantly improved the aerodynamic design efficiency. At the same time, it has perfected the practical high-speed aerodynamic design method and flow of large-scale passenger aircraft in the project. The integrated constraints of aerodynamic, icing and static-dynamic flexibility in the design process reflect the essential characteristics of multi-disciplinary synthesis of wing design. To help form a comprehensive optimal design. Taking the supercritical wing optimization design of large passenger aircraft as an example, its application in high speed aerodynamic design is described.