Accession Number:

ADA627135

Title:

Multiscale Numerical Methods for Non-Equilibrium Plasma

Descriptive Note:

Final rept. 10 Aug 2010-12 May 2015

Corporate Author:

AIR FORCE RESEARCH LAB EDWARDS AFB CA ROCKET PROPULSION DIV

Report Date:

2015-08-01

Pagination or Media Count:

615.0

Abstract:

The goal of this research program consisted of developing a high-fidelity modeling capability for non-equilibrium plasma, including detailed collisional-radiative kinetics, and magneto-hydrodynamic physics. Through this research effort, we have successfully implemented and verified single fluid, magneto-hydrodynamic and multi-fluid models. The collisional-radiative kinetics were solved and coupled to the fluid, and a new, high-accuracy model for complexity reduction of the atomic collisional-radiative chemistry was developed and tested. This allows an efficient yet accurate way to model complex and realistic plasma chemistries - involving multiple ion stages and multiple species - coupled to the fluid dynamics. Extensions of the model to allow such time-accurate simulations in multi-dimensional configurations are currently being investigated. Such a capability is a significant step forward in high-fidelity plasma simulations, for various conditions of interest to the Air Force and the DoD, and is made possible by the preliminary RD conducted under this Laboratory Research Independent Research.

Subject Categories:

  • Operations Research
  • Fluid Mechanics
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE