Physics
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..gecpt2029v&link_type=abstract
American Physical Society, 57th Gaseous Electronics Conference, 26-29 September, 2004, Shannon, Republic of Ireland, MEETING ID:
Physics
Scientific paper
The aim of this research is to experimentally explore an approach to regenerate power during the Martian atmospheric entry. Understanding the basic processes involved in formation and sustaining of the entry plasma is necessary in order to evaluate optimum trajectories, and estimate reduction and redirection of heat. For instance, heat transfer from shock-heated heavy particles to electrons sustains nonequilibrium ionization-recombination process during the life of Martian entry plasma. Peak pressure in the plasma also changes during Martian atmospheric entry. To study these effects, a series of lab tests are underway that uses a supersonic flowing afterglow of a high-pressure microwave discharge in Martian simulant gas (MSG) to reconstruct the conditions in the boundary layer of a vehicle upon its entry into Mars atmosphere. MSG, composed of 95.5substitute for the Martian atmosphere. In the gas composition of MSG flowing afterglow CO is dominant, with significant portions of O, CO2, and O2. We will describe the supersonic flowing afterglow system and employed diagnostic techniques, and discuss the scaling validity of the simulation.
Drake Jeremy J.
Moses Ray
Popovic Sinisa
Vuskovic Lepsa
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