Multidisciplinary Design Optimization Procedure for Improved Design of a Cooled Gas Turbine Blade
| Autor: | John Rajadas, Aditi Chattopadhyay, S. S. Talya |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Engineering
Control and Optimization Turbine blade Blade (geometry) business.industry Applied Mathematics Multidisciplinary design optimization Blade geometry Aerodynamics Structural engineering Management Science and Operations Research Solver Industrial and Manufacturing Engineering Finite element method Computer Science Applications law.invention Physics::Fluid Dynamics law Turbomachinery business |
| Zdroj: | Engineering Optimization. 34:175-194 |
| ISSN: | 1029-0273 0305-215X |
| DOI: | 10.1080/03052150210917 |
| Popis: | A multidisciplinary optimization procedure for gas turbine blade design has been developed and demonstrated on a generic 3-D blade. The blade is cooled both internally and externally (film cooling). Aerodynamic and heat transfer design criteria are integrated along with various constraints on the blade geometry. The blade is divided into numerous spanwise sections and each section is represented by a Bezier-Bernstein polynomial. A comprehensive solver for 3-D Navier-Stokes equations is used for the viscous flow calculations. The finite element method is used to obtain the blade interior temperatures. The average blade temperature and maximum blade temperature at each spanwise section are minimized, with aerodynamic and geometric constraints on the blade geometry. The constrained multiobjective optimization problem is solved using the Kreisselmeier-Steinhauser function approach. The results for a generic turbine blade design problem show significant improvements after optimization. |
| Databáze: | OpenAIRE |
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