论文部分内容阅读
飞机概念设计阶段需要反复修改气动外形来优化气动特性。在飞机概念设计阶段,传统的方法采用工程算法来估算气动特性~([1])。这种方法的优点是计算速度快,但是只能适用于常规布局飞机,无法应用于非常规布局飞机气动特性估算。数值分析方法可用于非常规布局飞机气动特性估算,但建模过程较复杂,需要三维几何建模、网格划分、流场分析等,难以满足飞机概念设计中快速估算的要求。针对这一问题,本文基于参数化建模方法和快速气动
The conceptual design phase of the aircraft required repeated modifications to the aerodynamic profile to optimize aerodynamic characteristics. In the conceptual design phase of the aircraft, the traditional method used engineering algorithms to estimate the aerodynamic characteristics ~ ([1]). The advantage of this method is that it is computationally fast, but it can only be applied to conventional layout aircraft and can not be applied to estimate the aerodynamic characteristics of unconventionally deployed aircraft. The numerical analysis method can be used to estimate the aerodynamic characteristics of aircraft with unconventional layout. However, the modeling process is complicated and requires three-dimensional geometric modeling, meshing and flow field analysis to meet the requirements of rapid estimation in aircraft conceptual design. In response to this problem, this paper is based on parametric modeling and rapid aerodynamics