NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Numerical simulations of a nonequilibrium argon plasma in a shock-tube experimentA code developed for the numerical modeling of nonequilibrium radiative plasmas is applied to the simulation of the propagation of strong ionizing shock waves in argon gas. The simulations attempt to reproduce a series of shock-tube experiments which will be used to validate the numerical models and procedures. The ability to perform unsteady simulations makes it possible to observe some fluctuations in the shock propagation, coupled to the kinetic processes. A coupling mechanism by pressure waves, reminiscent of oscillation mechanisms observed in detonation waves, is described. The effect of upper atomic levels is also briefly discussed.
Document ID
19910058910
Document Type
Conference Paper
Authors
Cambier, Jean-Luc (NASA Ames Research Center Moffett Field; Eloret Institute, Palo Alto, CA, United States)
Date Acquired
August 15, 2013
Publication Date
June 1, 1991
Subject Category
PLASMA PHYSICS
Report/Patent Number
AIAA PAPER 91-1464
Distribution Limits
Public
Copyright
Other