Design Method for Turbomachine Blades With Finite Thickness by the Circulation Method

[+] Author and Article Information
J. Jiang, T. Dang

Department of Mechanical, Aerospace and Manufacturing Engineering, Syracuse University, Syracuse, NY 12344

J. Turbomach 119(3), 539-543 (Jul 01, 1997) (5 pages) doi:10.1115/1.2841155 History: Received March 04, 1994; Online January 29, 2008


This paper presents a procedure to extend a recently developed three-dimensional inverse method for infinitely thin blades to handle blades with finite thickness. In this inverse method, the prescribed quantities are the blade pressure loading and the blade thickness distributions, and the calculated quantity is the blade mean camber line. The method is formulated in the fully inverse mode whereby the blade shape is determined iteratively using the flow-tangency condition along the blade surfaces. Design calculations are presented for an inlet guide vane, an impulse turbine blade, and a compressor blade in the two-dimensional inviscid- and incompressible-flow limit. Consistency checks are carried out for these design calculations using a panel analysis method and the analytical solution for the Gostelow profile.

Copyright © 1997 by The American Society of Mechanical Engineers
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