Prediction of radiative heating of internal surfaces of hydrogen and air laser plasma generators intended for aerospace applications

Details Prediction of radiative heating of internal surfaces of hydrogen and air laser plasma generators intended for aerospace applications Prediction of radiative heating of internal surfaces of hydrogen and air laser plasma generators intended for aerospace applications

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.533...11f&link_type=abstract

In: Proceedings of the First International Workshop on Radiation of High Temperature Gases in Atmospheric Entry, 8-10 October 20

Computer Science

Radiative Heat Transfer, Space Probes, Planetary Atmospheres

Scientific paper

Time-accurate simulation of gas dynamic structures resulting at viscous, heat conducting and radiating gas flows through localized laser plasma in Laser Supported Plasma Generator (LSPG) is performed. Developed numerical simulation model is based on the Navier-Stokes equations, energy conservation equation for chemically equilibrium heat conducting gas, and on the radiation heat transfer equation in multi-group spectral approximation. Air and hydrogen of atmospheric pressure are investigated as plasma-forming gas. Radiative heating of internal surface of the air and hydrogen LSPG is studied numerically. Group and integral radiation heat fluxes on internal surface of the LSPG cylindrical channel were calculated by the P1-approximation of the Spherical Harmonics method, the Discrete Directions method, and the Discrete Ordinates method. Numerical simulation results are compared.

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