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Title: Thermally induced behavior of liquid mixtures of hydrogen isotopes inside a spherical inertial confinement fusion target

Abstract

A theory is presented which is intended to explain thermally induced formation of uniform liquid layers of ternary mixtures of hydrogen isotopes inside a spherical inertial confinement fusion (ICF) target. The governing equations are the equations of stream function, modified vorticity, and energy, and the equations of conservation of the individual isotopic species. The equations for the diffusion fluxes of the species include both ordinary and thermal diffusions. These coupled equations are solved by a finite-difference method using upwind schemes and variable mesh. The results demonstrate the influence of the concentration- and temperature-induced surface tension gradients in creating the uniform liquid fuel layer inside an ICF target. Comparison of the present theory with the experimental data is made for targets filled, respectively, with D/sub 2/ and mixtures of H/sub 2/ and D/sub 2/, producing good agreement in both cases.

Authors:
; ;
Publication Date:
Research Org.:
Fusion Technology Laboratory, University of Illinois, Urbana, Illinois 61801
OSTI Identifier:
6488456
Resource Type:
Journal Article
Journal Name:
J. Vac. Sci. Technol., A; (United States)
Additional Journal Information:
Journal Volume: 5:4
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; LASER TARGETS; LIQUID FLOW; DEUTERIUM; DIFFUSION; FLUID FLOW; HYDROGEN; INERTIAL CONFINEMENT; LASER-PRODUCED PLASMA; LIQUIDS; CONFINEMENT; ELEMENTS; FLUIDS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; NONMETALS; NUCLEI; ODD-ODD NUCLEI; PLASMA; PLASMA CONFINEMENT; STABLE ISOTOPES; TARGETS; 700208* - Fusion Power Plant Technology- Inertial Confinement Technology; 640410 - Fluid Physics- General Fluid Dynamics

Citation Formats

Varadarajan, V, Kim, K, and Bernat, T P. Thermally induced behavior of liquid mixtures of hydrogen isotopes inside a spherical inertial confinement fusion target. United States: N. p., 1987. Web. doi:10.1116/1.574734.
Varadarajan, V, Kim, K, & Bernat, T P. Thermally induced behavior of liquid mixtures of hydrogen isotopes inside a spherical inertial confinement fusion target. United States. https://doi.org/10.1116/1.574734
Varadarajan, V, Kim, K, and Bernat, T P. Wed . "Thermally induced behavior of liquid mixtures of hydrogen isotopes inside a spherical inertial confinement fusion target". United States. https://doi.org/10.1116/1.574734.
@article{osti_6488456,
title = {Thermally induced behavior of liquid mixtures of hydrogen isotopes inside a spherical inertial confinement fusion target},
author = {Varadarajan, V and Kim, K and Bernat, T P},
abstractNote = {A theory is presented which is intended to explain thermally induced formation of uniform liquid layers of ternary mixtures of hydrogen isotopes inside a spherical inertial confinement fusion (ICF) target. The governing equations are the equations of stream function, modified vorticity, and energy, and the equations of conservation of the individual isotopic species. The equations for the diffusion fluxes of the species include both ordinary and thermal diffusions. These coupled equations are solved by a finite-difference method using upwind schemes and variable mesh. The results demonstrate the influence of the concentration- and temperature-induced surface tension gradients in creating the uniform liquid fuel layer inside an ICF target. Comparison of the present theory with the experimental data is made for targets filled, respectively, with D/sub 2/ and mixtures of H/sub 2/ and D/sub 2/, producing good agreement in both cases.},
doi = {10.1116/1.574734},
url = {https://www.osti.gov/biblio/6488456}, journal = {J. Vac. Sci. Technol., A; (United States)},
number = ,
volume = 5:4,
place = {United States},
year = {1987},
month = {7}
}