New Method and Algorithm of Three-Dimensional Turbine Guide Blade Rim Optimization
| Autor: | Yuri Govorushchenko, Anatoli Boiko, Maksym Burlaka |
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| Rok vydání: | 2010 |
| Předmět: |
Engineering
Turbine blade Blade (geometry) 3D-оптимізація Computation efficiency of turbine Computational fluid dynamics тангенціальний нахил Turbine law.invention guide blade rim guide blade deformation law DOE метод Монте-Карло Mass flow rate optimal design деформація напрямної лопатки tangential lean business.industry розрахункова сітка ефективність турбіни turbine computational grid Structural engineering Aerodynamics Monte-Carlo method 3D-optimization напрямний апарат Parametric model турбіни CFD оптимальне проектування планування експерименту (DOE) business Algorithm |
| Zdroj: | ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C. |
| DOI: | 10.1115/fedsm-icnmm2010-30018 |
| Popis: | The new method and algorithm of three-dimensional turbine guide blade rim optimization were proposed using CFD-calculations, guide blade deformation and reasonable computation time consuming optimization approach. Verification of three-dimensional CFD-calculations results are presented by comparison with experimental data. The reasonableness of the isolated guide blade rim optimization of a turbine stage is justified. Two methods of the complex tangential lean implementation are compared. The parametric model is developed allowing conservation of the mass flow rate through the blade passage during optimization process. Both a bowing method and computational grids construction are realized in specialized program TOpGrid. The gained grids has been written in format CGNS (CFD General Notation System). The optimization approach is grounded on a combination of the DOE theory and Monte-Carlo method. The algorithm of optimization of guide blade rim is described. The examination of aerodynamic optimization efficiency with the developed algorithm of a guide blade rim at different a/l (a-throat of the channel, l-height of a blade) was carried out. The analysis of the results of the computation and physical explanation of reasons of a turbine blade passage efficiency rise is given. |
| Databáze: | OpenAIRE |
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