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Direct simulation of re-entry flows with ionization

ANN B. CARLSON, . A. HASSAN
1992 Journal of thermophysics and heat transfer  

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The Direct Simulation Monte Carlo DSMC method is applied in this paper to the study of rare ed, hypersonic, reentry ows. The assumptions and simpli cations involved with the treatment of ionization, free electrons and the electric eld are investigated. A new method is presented for the calculation of the electric eld and handling of charged particles with DSMC. In addition, a two-step model for electron impact ionization is implemented. The ow eld representing a 10 km sec shock at an altitude
more » ... 65 km is calculated. The e ects of the new modeling techniques on the calculation results are presented and discussed. Nomenclature A; a; b constants e electric charge E electric eld E a activation energy
doi:10.2514/3.374 fatcat:uqyzo7rlwzds5ggewjldna5v6y
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ANN B. CARLSON, . A. HASSAN. "Direct simulation of re-entry flows with ionization." Journal of thermophysics and heat transfer 6.3 (1992) 400-404