| タイトル | Computational simulation of turbulent flow in Space Shuttle Main Engine turnaround ducts |
| 著者（英） | Nguyen, Hai Q.; Habchi, Sami D.; Przekwas, Andrzej J. |
| 著者所属（英） | NASA Marshall Space Flight Center; Computational Fluid Dynamics Research Corp. |
| 発行日 | 1988-07-01 |
| 言語 | eng |
| 内容記述 | Two axisymmetric 180-deg turnaround ducts are used in the Space Shuttle Main Engine (SSME) to connnect the preburners with the main thrust chamber. The prediction of the flow field and heat transfer within the turnaround ducts is important to minimize the pressure drops, size of recirculation and stagnation zones, local overheating, etc. This paper presents the computational approach and selected results for the turbulent flow in the turnaround ducts of the fuel and oxidizer sides of the SSME. The time-averaged, Navier-Stokes equations for the viscous, compressible, turbulent flow are solved in body-fitted-coordinates by using a finite-volume approach. Two turbulence models, viz: the k-epsilon model and a multiple scale turbulence model, are used to examine the sensitivity of calculated flows. Both models produce almost identical solutions for the fuelside turnaround duct (which has no recirculation region). However, for the oxidizer-side duct which has a large recirculation region, the two models show quite different results. |
| NASA分類 | SPACECRAFT PROPULSION AND POWER |
| レポートNO | 88A44723
AIAA PAPER 88-3008 |
| 権利 | Copyright |
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