Viscous single and multicomponent airfoil design with genetic algorithms

摘要

An optimization procedure aimed at the design of multicomponentairfoils for high-lift applications is described. The procedure isbased on a multiobjective genetic algorithm; two flow solvers havebeen coupled with the genetic algorithm: a viscous-inviscidinteraction method, based on an Euler flow solver and an integralboundary layer routine, and a method based on a full potential flowsolver. The first model is used for high-lift configurations, whereasthe second is used to optimize transonic performances for cruiseconfigurations. The applications described include both single andmultiobjective design of a high-lift multicomponent airfoil, and amultipoint design where the transonic and high-lift requirements aretaken into account simultaneously.