Direct simulation of reentry flows with ionization | Zendy

Ann B. Carlson | Zendy; Hassan Hemida | Zendy

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Direct simulation of reentry flows with ionization

Author(s) -

Ann B. Carlson,

Hassan Hemida

Publication year - 1990

Publication title -

29th aerospace sciences meeting

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1990-144

Subject(s) - reentry , ionization , computer science , aerospace engineering , physics , engineering , ion , medicine , quantum mechanics , cardiology

The Direct Simulation Monte Carlo (DSMC) method is applied in this paper to the study of rarefied, hypersonic, reentry flows. The assumptions and simplifications involved with the treatment of ionization, free electrons and the electric field are investigated. A new method is presented for the calculation of the electric field and handling of charged particles with DSMC. In addition, a two-step model for electron impact ionization is implemented. The flow field representing a 10 km/sec shock at an altitude of 65 km is calculated. The effects of the new modeling techniques on the calculation results are presented and discussed.

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