| タイトル | Multiphysics Thermal-Fluid Design Analysis of a Non-Nuclear Tester for Hot-Hydrogen Materials and Component Development |
| 本文（外部サイト） | http://hdl.handle.net/2060/20060007719 |
| 著者（英） | Foote, John; Litchford, Ron; Wang, Ten-See |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 2006-01-01 |
| 言語 | eng |
| 内容記述 | The objective of this effort is to perform design analyses for a non-nuclear hot-hydrogen materials tester, as a first step towards developing efficient and accurate multiphysics, thermo-fluid computational methodology to predict environments for hypothetical solid-core, nuclear thermal engine thrust chamber design and analysis. The computational methodology is based on a multidimensional, finite-volume, turbulent, chemically reacting, thermally radiating, unstructured-grid, and pressure-based formulation. The multiphysics invoked in this study include hydrogen dissociation kinetics and thermodynamics, turbulent flow, convective, and thermal radiative heat transfers. The goals of the design analyses are to maintain maximum hot-hydrogen jet impingement energy and to minimize chamber wall heating. The results of analyses on three test fixture configurations and the rationale for final selection are presented. The interrogation of physics revealed that reactions of hydrogen dissociation and recombination are highly correlated with local temperature and are necessary for accurate prediction of the hot-hydrogen jet temperature. |
| NASA分類 | Fluid Mechanics and Thermodynamics |
| 権利 | No Copyright |
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