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Numerical investigations in the backflow region of a vacuum plume
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Liaw, Goang-Shin |
| Copyright Year | 1995 |
| Description | Four tasks were completed in this period and results were published in AIAA papers. First, a Boltzmann-2D code, was developed and applied to compute MSFC-A2 nozzle/plume flow field. It solved the two-dimensional Boltzmann-BGK equation using the Finite Difference Discrete Ordinate (FDDO) numerical technique. The code was validated by experimental data for one-dimensional shock structure predictions, paper 95-2056. Successful results for nozzle/plume flow simulation using the developed Boltzmann-2D code were presented at the 1995 AIAA Aerospace Science Conference, paper 95-0627. Second, a computer code solving two-dimensional Burnett equations was developed and applied to low-density nozzle flow field calculation. Results were also published at the 1994 AIAA Thermophysics Conference, paper 94-2055. Third, the developed two-dimensional Burnett code was extended to compute axisymmetric flow field inside MSFC-A2 nozzle, paper 95-2008. The computed nozzle exit conditions are used as input data for Direct Simulation Monte Carlo (DSMC) plume calculation. Fourth, a DSMC code was modified to compute the exhausted plume near the nozzle exit and in the backflow region. |
| File Size | 759965 |
| Page Count | 19 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960003434 |
| Archival Resource Key | ark:/13960/t5s809d62 |
| Language | English |
| Publisher Date | 1995-08-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Low Density Flow Knudsen Flow Runge-kutta Method Computerized Simulation Two Dimensional Flow Monte Carlo Method Plumes Axisymmetric Flow Computer Programs Vacuum Nozzle Flow Gas Flow Finite Difference Theory Exhaust Gases Flow Distribution Boltzmann Transport Equation Rocket Exhaust Rarefied Gas Dynamics Rarefied Gases Mach Number Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
