A modeling approach for heat conduction and radiation diffusion in plasmaphoton mixture in temperature nonequilibrium
Abstract
We present a simple approach for determining ion, electron, and radiation temperatures of heterogeneous plasmaphoton mixtures, in which temperatures depend on both material type and morphology of the mixture. The solution technique is composed of solving ion, electron, and radiation energy equations for both mixed and pure phases of each material in zones containing random mixture and solving pure material energy equations in subdivided zones using interface reconstruction. Application of interface reconstruction is determined by the material configuration in the surrounding zones. In subdivided zones, subzonal intermaterial energy exchanges are calculated by heat fluxes across the material interfaces. Intermaterial energy exchange in zones with random mixtures is modeled using the length scale and contact surface area models. In those zones, interzonal heat flux in each material is determined using the volume fractions.
 Authors:
 Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
 Publication Date:
 Research Org.:
 Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
 Sponsoring Org.:
 USDOE National Nuclear Security Administration (NNSA)
 OSTI Identifier:
 1304795
 Report Number(s):
 LAUR1626392
TRN: US1601797
 DOE Contract Number:
 AC5206NA25396
 Resource Type:
 Technical Report
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; THERMAL CONDUCTION; PHOTONS; MIXTURES; ELECTRON TEMPERATURE; ZONES; ION TEMPERATURE; INTERFACES; PLASMA; HEAT FLUX; DIFFUSION; EQUATIONS; COMPUTERIZED SIMULATION; MATHEMATICAL SOLUTIONS; CONFIGURATION
Citation Formats
Chang, Chong. A modeling approach for heat conduction and radiation diffusion in plasmaphoton mixture in temperature nonequilibrium. United States: N. p., 2016.
Web. doi:10.2172/1304795.
Chang, Chong. A modeling approach for heat conduction and radiation diffusion in plasmaphoton mixture in temperature nonequilibrium. United States. doi:10.2172/1304795.
Chang, Chong. 2016.
"A modeling approach for heat conduction and radiation diffusion in plasmaphoton mixture in temperature nonequilibrium". United States.
doi:10.2172/1304795. https://www.osti.gov/servlets/purl/1304795.
@article{osti_1304795,
title = {A modeling approach for heat conduction and radiation diffusion in plasmaphoton mixture in temperature nonequilibrium},
author = {Chang, Chong},
abstractNote = {We present a simple approach for determining ion, electron, and radiation temperatures of heterogeneous plasmaphoton mixtures, in which temperatures depend on both material type and morphology of the mixture. The solution technique is composed of solving ion, electron, and radiation energy equations for both mixed and pure phases of each material in zones containing random mixture and solving pure material energy equations in subdivided zones using interface reconstruction. Application of interface reconstruction is determined by the material configuration in the surrounding zones. In subdivided zones, subzonal intermaterial energy exchanges are calculated by heat fluxes across the material interfaces. Intermaterial energy exchange in zones with random mixtures is modeled using the length scale and contact surface area models. In those zones, interzonal heat flux in each material is determined using the volume fractions.},
doi = {10.2172/1304795},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 8
}

STRZA 7090 FORTRAN PROGRAM FOR THE STEADYSTATE TEMPERATURE DISTRIBUTION IN RZ GEOMETRY WITH TEMPERATURE AND DIRECTION DEPENDENT HEAT CONDUCTION COEFFICIENTS AND RADIATION IN NARROW GAPS
A 7090 FORTRAN program for the calculation of the steadystate, rotationally symmetric temperature field in an inhomogeneous cylindrical body, in which heat production, radiation in narrow gaps, and heat conduction with temperature and direction dependent conduction coefficients may occur. The body can be divided into at most 70 regions of constant heat production rate and consisting of one material composition. At most 35 material compositions with temperaturedependent heat conduction coefficients are allowed. Boundary conditions may be: constant temperature, isolation, or constant flow. At most 50 x 50 internal meshpoints are allowed. The numerical method is a twolevel iteration process. (auth)