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Title: Validation of DSMC results for chemically nonequilibrium air flows against measurements of the electron number density in RAM-C II flight experiment

An ionized flow around the RAM C-II vehicle in the range of altitudes from 73 to 81 km is studied by the Direct Simulation Monte Carlo (DSMC) method with three models of chemical reactions. It is demonstrated that vibration favoring in reactions of dissociation of neutral molecules affects significantly the predicted values of plasma density in the shock layer, and good agreement between the results of experiments and DSMC computations can be achieved in terms of the plasma density as a function of the flight altitude.
Authors:
; ;  [1] ;  [2]
  1. Novosibirsk State University, 630090, Russia and Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, 630090 (Russian Federation)
  2. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, 630090 (Russian Federation)
Publication Date:
OSTI Identifier:
22390561
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1628; Journal Issue: 1; Conference: 29. International Symposium on Rarefied Gas Dynamics, Xi'an (China), 13-18 Jul 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AIR FLOW; ALTITUDE; COMPUTERIZED SIMULATION; DISSOCIATION; ELECTRONS; FLOW MODELS; GAS FLOW; LAYERS; MOLECULES; MONTE CARLO METHOD; PLASMA DENSITY; SPACE VEHICLES; VALIDATION