CAJ | 학술논문

现有翼型表达大都基于控制点和初始成熟翼型，设计空间小因而不利于选出高性能翼型。基于Joukowski 保角变换通用翼型形线表征形式，编程集成 ICEM 和 FLUENT 完成翼型生成、大变形网格重构、边界条件生成和流场解算，采用改进遗传算法进行高升阻比风力机翼型多学科联合设计。结果表明本平台设计的翼型在设计、非设计工况下以及主要攻角范围内有较高升力系数和升阻比。该型线集成表达和流场计算多学科设计方法，也为类似气动优化设计提供参考。
현유익형표체대도기우공제점화초시성숙익형，설계공간소인이불리우선출고성능익형。기우Joukowski 보각변환통용익형형선표정형식，편정집성 ICEM 화 FLUENT 완성익형생성、대변형망격중구、변계조건생성화류장해산，채용개진유전산법진행고승조비풍력궤익형다학과연합설계。결과표명본평태설계적익형재설계、비설계공황하이급주요공각범위내유교고승력계수화승조비。해형선집성표체화류장계산다학과설계방법，야위유사기동우화설계제공삼고。
Most of the airfoil representations do not have a large enough domain to select the optimal airfoil in that they mainly depend on control points and initial airfoils.Based on the parametric profile representation,which originated from Joukowski conformal transformation,an improved genetic algorithm was designed to obtain airfoils with a high lift-to-drag ratio.ICEM and FLUENT were coupled to generate airfoils,reconstruct mesh,set boundary conditions and calculate aerodynamic performances.The results showed that the new airfoil has a higher lift coefficient and lift-to-drag ratio in on-design and off-design operation conditions and at the main range of attack angles.This multidisciplinary design integrates well parametric representation and CFD simulation,which can also provide a reference for similar aerodynamic optimization designs.