Analysis and Optimization of Double-Jet Film-Cooling Holes
| Autor: | Kwang-Yong Kim, Ki-Don Lee, Dae-Woong Choi |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Fluid Flow and Transfer Processes
Jet (fluid) Turbulence Mechanical Engineering Numerical analysis Aerospace Engineering Mechanics Condensed Matter Physics Surrogate model Latin hypercube sampling Space and Planetary Science Shear stress Reynolds-averaged Navier–Stokes equations Mathematics Sequential quadratic programming |
| Zdroj: | Journal of Thermophysics and Heat Transfer. 27:246-254 |
| ISSN: | 1533-6808 0887-8722 |
| DOI: | 10.2514/1.t4060 |
| Popis: | A parametric analysis and optimization of double-jet film-cooling holes was performed using three-dimensional Reynolds averaged Navier–Stokes equations with the shear stress transport turbulence model. The numerical results for film-cooling effectiveness were validated in comparison with experimental data. The lateral and streamwise distances between the centers of the holes, along with two lateral ejection angles, were chosen as the design variables. The effects of these four variables on the film-cooling effectiveness were evaluated. For optimization of double-jet film-cooling holes, film-cooling effectiveness was considered as the objective function. Latin hypercube sampling was used to determine the design points. A weighted average surrogate model was constructed using the objective function values calculated at the design points. Sequential quadratic programming was used to search for the optimal point from the constructed surrogate. The cooling performance of double-jet film-cooling holes was impro... |
| Databáze: | OpenAIRE |
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