基于离散伴随方法的翼型定常/非定常气动优化设计  

Steady/Unsteady Aerodynamic Optimization Design ofAirfoil Based on Discrete Adjoint Method

作　　者：王士源 杨爱明 WANG Shiyuan;YANG Aiming(Department of Aeronautics and Astronautics,Fudan University,Shanghai 200433,China)

机构地区：[1]复旦大学航空航天系,上海200433

出　　处：《复旦学报（自然科学版）》2024年第2期209-215,共7页Journal of Fudan University：Natural Science

摘　　要：为了有效提升翼型的气动性能,本文发展了一种基于离散伴随方法的翼型定常/非定常气动优化设计方法。应用该方法,对给定目标压力下的翼型反设计问题和振荡翼型的时平均阻力优化问题进行了研究,所得结果表明:反设计得到的翼型几何外形与目标翼型高度一致;振荡翼型的阻力优化计算经过12次迭代后,时平均阻力降低了约40%。In order to improve the aerodynamic performance of an airfoil effectively,a method of the steady/unsteady aerodynamic optimization design based on discrete adjoint method has been developed.This method is applied to study the inverse design problem of an airfoil under a given target pressure and the optimization problem of time-averaged drag of an oscillating airfoil.The results show that the geometry of the inverse design airfoil is highly consistent with the target airfoil;after 12 iterations,the time-averaged drag of the oscillating airfoil is reduced by about 40%.

关 键 词：离散伴随方法 气动优化设计 振荡翼型 时平均阻力 

分 类 号：O35[理学—流体力学]