Numerical prediction of dynamics of interaction of laser discharge plasma with a hemisphere-cylinder in a supersonic flow

O. A. Azarova, D. D. Knight

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

The effect of a laser discharge onto supersonic flow past a hemisphere-cylinder at Mach 3.45 is considered. Flow details accompanying supersonic streamlining for three values of energy of a laser impulse - 13 mJ, 127 mJ and 258 mJ - are simulated numerically on the basis of the Euler equations. The energy deposition is modeled via the combining heated rarefied channels. Complex unsteady vortex contact structures caused by the Richtmyer-Meshkov instability together with a rarefaction wave reflection are shown to be the reason for the reduction of the stagnation pressure. Optimization of the characteristics of the energy sources has been realized taking into account the flow analysis and the comparison of the computational and experimental data. Energy estimations are provided for the three considered parameters of the laser impulse.

Original languageEnglish (US)
Title of host publication53rd AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103438
DOIs
StatePublished - 2015
Event53rd AIAA Aerospace Sciences Meeting, 2015 - Kissimmee, United States
Duration: Jan 5 2015Jan 9 2015

Publication series

Name53rd AIAA Aerospace Sciences Meeting

Other

Other53rd AIAA Aerospace Sciences Meeting, 2015
Country/TerritoryUnited States
CityKissimmee
Period1/5/151/9/15

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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