Inverse design of compressor cascades


Kaplan B., EYİ S.

39th Aerospace Sciences Meeting and Exhibit 2001, Reno, NV, Amerika Birleşik Devletleri, 8 - 11 Ocak 2001 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: Reno, NV
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

In this paper an inverse design method is presented which couples a Navier-Stokes flow solver and a numerical optimization algorithm. The design method generates a compressor cascade, producing a specified surface pressure distribution at a transonic speed. A least-square optimization technique is used to minimize pressure discrepancies between the target and designed cascades. In order to represent the nonlinear, rotational and viscous physics of transonic flows, Navier-Stokes equations are used to predict the flow field. Sensitivity derivatives are obtained using finite differencing. Effects of different design variables on the performance of design optimization are evaluated. Sensitivities are calculated on parallel processors to reduce the computational cost. © 2000 The American Institute of Aeronautics and Astronautics Inc. All rights reserved.