A Numerical Procedure of Three-Dimensional Design Problem in Turbomachinery

[+] Author and Article Information
J. Z. Xu, C. W. Gu

Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, People’s Republic of China

J. Turbomach 114(3), 548-552 (Jul 01, 1992) (5 pages) doi:10.1115/1.2929178 History: Received February 20, 1991; Online June 09, 2008


A numerical method for solving the three-dimensional aerothermodynamic design problem with some type of Mach number distributions on the blade surfaces is presented. In the usual aerothermodynamic design of a turbomachine, the three-dimensional coordinates of the blade are attained through stacking of the cascade profiles and may not ensure the desired velocity distribution. To avoid this problem, the present method will give new coordinates of the blade according to the required Mach number distribution. The method is based on the pseudostream function formulation and the treatment of the boundary conditions in the design problem is given. The numerical results show that the method is simple and useful in design.

Copyright © 1992 by The American Society of Mechanical Engineers
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