WIT Press


An Inverse Design Problem Of Estimating Shape Of Cooling Passages In Turbine Blades

Price

Free (open access)

Paper DOI

10.2495/BE990341

Volume

25

Pages

10

Published

1999

Size

865 kb

Author(s)

Cheng-Hung Huang & Tao-Yen Hsiung

Abstract

An inverse design problem is solved to determine the shape of complex coolant flow passages in internal cooled turbine blades by using the conjugate gradient method (CGM). One of the advantages of using COM lies in that it easily can handle problems having a huge number of unknown parameters and converges very fast. The boundary element method (BEM) is used to calculate the direct, sensitivity and adjoint problems due to its characteristics of easily handling the problem considered here. Results obtained by using the CGM to solve the inverse problems are verified based on the numerical experiments in the analysis model. One concludes that the CGM is applied successfully in estimating the arbitrary shape

Keywords