Computer Science
Scientific paper
Sep 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994sosyr..28..163p&link_type=abstract
Solar System Research, Vol. 28, No. 2, p. 163 - 170
Computer Science
Meteor Trails: Numerical Simulations, Meteor Trails: Orbits
Scientific paper
Based on the stream tube method the nonequilibrium concentrations, temperature, and emissivity of mixtures of air and xenon flowing around models moving at supersonic speeds are calculated for the conditions of ballistic experiments. A comparison of the thermal and chemiluminescent radiation in flow around a body is performed for the visible spectrum, from which it is shown that the two types of radiation decrease along the stream tube at substantially different rates. It is demonstrated that the xenon content in the mixture influences the radiation from the gas flow. Good agreement between the calculations of the spectral intensity in the wake and measurements for the Mach number M∞ in the range 10 - 16 is established. Laws governing the decrease in the electronic concentration and emissivity of chemiluminescent radiation with distance along the axis of the wake are obtained. The theoretical possibility of simulating nonequilibrium phenomena in meteor trails in ballistic experiments is shown.
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