Hybrid approach to inverse design of complex aerodynamic system

Ashok Gopalarathnam, Michael S. Selig

Research output: Contribution to conferencePaperpeer-review


A unified, hybrid approach is described for multipoint inverse design of complex aerodynamic systems. In this approach, the airfoils that comprise the complex system are generated in isolation using an inverse method for isolated airfoils. The system is then analyzed using an appropriate analysis method, such as a panel method for inviscid analysis and an integral boundary-layer method for viscous analysis. The design variables used to define the isolated airfoils are then adjusted using Newton iteration to achieve desired aerodynamic behavior on the system. The approach can be used for the aerodynamic design of several two- and three-dimensional systems such as multi-element airfoils, airfoils with plain flaps, wings, and wing-wing junctures. Essential for the success of the design approach are schemes for rapid computation of sensitivities for the Newton iteration. Two schemes are compared for efficient computation of the sensitivities. Examples are then presented for application of the method to both two-dimensional and three-dimensional design problems.

Original languageEnglish (US)
StatePublished - Dec 1 2000
Event38th Aerospace Sciences Meeting and Exhibit 2000 - Reno, NV, United States
Duration: Jan 10 2000Jan 13 2000


Other38th Aerospace Sciences Meeting and Exhibit 2000
Country/TerritoryUnited States
CityReno, NV

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering


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