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 sensitivity analysis conducted about theoptimum point have also been reported.
ASJC Scopus subject areas
- Nuclear Energy and Engineering
- Fuel Technology
- Aerospace Engineering
- Energy Engineering and Power Technology
- Mechanical Engineering