A New Method of Predicting the Performance of Gas Turbine Engines

[+] Author and Article Information
Wang Yonghong

Department of Power Machinery Engineering, Shanghai Jiao Tong University, Shanghai, The People’s Republic of China

J. Eng. Gas Turbines Power 113(1), 106-111 (Jan 01, 1991) (6 pages) doi:10.1115/1.2906516 History: Received January 22, 1990; Online April 24, 2008


This paper points out that the turbine performance computation method used widely at present in solving the performance of gas turbine engines is a numerically unstable algorithm. Therefore a new method, namely an inverse algorithm, is proposed. This paper then further proposes a new mathematical model for solving the stable performance of gas turbine engines. It has the features of not only being suitable for an inverse algorithm for turbine performance, but also having fewer dimensions than existing models. It has the advantages of high accuracy, rapid convergence, good stability, fewer computations, and so forth. It has been fully proven that the accuracy of the new model is much greater than that of the common model for gas turbine engines. Additionally, the time consumed for solving the new model is approximately 1/4~1/10 of that for the common model. Therefore, it is valuable in practice.

Copyright © 1991 by The American Society of Mechanical Engineers
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