Simulations of a molecular plasma in collisional-radiative nonequilibriumA code for the simulation of nonequilibrium plasmas is being developed, with the capability to couple the plasma fluid-dynamics for a single fluid with a collisional-radiative model, where electronic states are treated as separate species. The model allows for non-Boltzmann distribution of the electronic states. Deviations from the Boltzmann distributions are expected to occur in the rapidly ionizing regime behind a strong shock or in the recombining regime during a fast expansion. This additional step in modeling complexity is expected to yield more accurate predictions of the nonequilibrium state and the radiation spectrum and intensity. An attempt at extending the code to molecular plasma flows is presented. The numerical techniques used, the thermochemical model, and the results of some numerical tests are described.
Document ID
19930062660
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cambier, Jean-Luc (Eloret Inst., Palo Alto; NASA, Ames Research Center Moffett Field, CA, United States)
Moreau, Stephane (Stanford Univ. CA, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Subject Category
Plasma Physics
Report/Patent Number
AIAA PAPER 93-3196
Meeting Information
Meeting: AIAA, Plasmadynamics and Lasers Conference