Numerical Analysis of Gasdynamic Aspects of Laser Propulsion

Details Numerical Analysis of Gasdynamic Aspects of Laser Propulsion Numerical Analysis of Gasdynamic Aspects of Laser Propulsion

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..664..149g&link_type=abstract

BEAMED ENERGY PROPULSION: First International Symposium on Beamed Energy Propulsion. AIP Conference Proceedings, Volume 664, pp

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Spaceborne And Space Research Instruments, Apparatus, And Components, Laser Applications, Ion And Plasma Propulsion

Scientific paper

The paper is focused on numerical investigation of the gasdynamic processes accompanying laser beam energy deposition in nozzle of the laser propulsion engine (LPE). Various gasdynamic models were implemented in order to compare their applicability for simulation of the phenomena: (a) perfect ideal gas; (b) equilibrium plasma; (c) non-equilibrium multi-temperature plasma, and (d) two-phase mixture. Numerical method of the simulation is based on high-resolution Godunov-type scheme and unstructured adaptive grid technique. Two types of LPE nozzles were considered: parabolic and ``toroidal'' parabolic. Non-stationary gasdynamic function distribution and the thrust of the LPE were obtained. Time of gasdynamic parameter relaxation in the nozzle was estimated.

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