Optimum design of axial flow gas turbine stage: Part I: Formulation and analysis of optimization problem

S. S. Rao, R. S. Gupta

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

The problem of stage design of axial flow gas turbines has been formulated as a nonlinearmathematical programming problem with the objective ofminimizing aerodynamic lossesand mass of the stage. The aerodynamic as well as mechanical constraints are consideredin the problem formulation. A methodof evaluating the objective function and constraintsof the problem is presented in Part I of this paper. The optimization problem issolved by using the interior penalty function method in which the Davidon-Fletcher-Powellvariable metric unconstrained minimization technique with cubic interpolation methodof one-dimensional minimization is employed. Problems involving the optimizationof efficiency and/or mass of the stage have been solved numerically in Part II of the paper.The results of a sensitivity analysis conducted about the optimum point have also been reported.

Original languageEnglish (US)
Pages (from-to)782-789
Number of pages8
JournalJournal of Engineering for Gas Turbines and Power
Volume102
Issue number4
DOIs
StatePublished - Oct 1980
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Fuel Technology
  • Aerospace Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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