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Development of an efficient cfd model for nuclear thermal thrust chamber assembly design
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ross, Doug Chen, Yen-Sen Cheng, Gary Ito, Yasushi Wang, Ten-See |
| Copyright Year | 2007 |
| Description | The objective of this effort is to develop an efficient and accurate computational methodology to predict both detailed thermo-fluid environments and global characteristics of the internal ballistics for a hypothetical solid-core nuclear thermal thrust chamber assembly (NTTCA). Several numerical and multi-physics thermo-fluid models, such as real fluid, chemically reacting, turbulence, conjugate heat transfer, porosity, and power generation, were incorporated into an unstructured-grid, pressure-based computational fluid dynamics solver as the underlying computational methodology. The numerical simulations of detailed thermo-fluid environment of a single flow element provide a mechanism to estimate the thermal stress and possible occurrence of the mid-section corrosion of the solid core. In addition, the numerical results of the detailed simulation were employed to fine tune the porosity model mimic the pressure drop and thermal load of the coolant flow through a single flow element. The use of the tuned porosity model enables an efficient simulation of the entire NTTCA system, and evaluating its performance during the design cycle. |
| File Size | 1295297 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20070031967 |
| Archival Resource Key | ark:/13960/t1fj7f92n |
| Language | English |
| Publisher Date | 2007-06-25 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Turbulence Computational Fluid Dynamics Unstructured Grids Mathematics Coolants Thrust Chambers Porosity Heat Transfer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
