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Title: Numerical simulation of an ICF target explosion in a stratified gas atmosphere

Abstract

Two-dimensional radiation hydrodynamic simulations of a light ion fusion target generated microfireball in a stratified gas atmosphere have been performed. The target location in a two region cavity was varied with the intent to reduce the overpressure on the diodes at the walls of a target chamber with a single cavity gas. Helium and nitrogen at 15 torr were used as the cavity gases; target explosions of 200 and 800 MJ were investigated. It was found that placing the target in a helium region surrounded by nitrogen could reduce the overpressure by a factor of 2 when compared with a single gas cavity of nitrogen. The surface heat flux was also reduced from a pure helium gas cavity.

Authors:
; ;
Publication Date:
Research Org.:
Fusion Technology Institute, Univ. of Wisconsin, 1500 Johnson Drive, Madison, WI 53706-1687
OSTI Identifier:
7005671
Report Number(s):
CONF-860652-
Journal ID: CODEN: FUSTE; TRN: 87-007650
Resource Type:
Conference
Journal Name:
Fusion Technol.; (United States)
Additional Journal Information:
Journal Volume: 10:3; Conference: 7. topical meeting on the technology of fusion energy, Reno, NV, USA, 15 Jun 1986
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ION BEAM FUSION REACTORS; ION BEAM TARGETS; COMPUTERIZED SIMULATION; EXPLOSIONS; NUCLEAR FIREBALL MODEL; CONTROLLED ATMOSPHERES; HEAT FLUX; HELIUM; HYDRODYNAMICS; INTERNAL COMBUSTION ENGINES; LOW PRESSURE; NITROGEN; NUCLEAR FIREBALLS; PRESSURE CONTROL; PRESSURE DROP; SEMICONDUCTOR DIODES; TARGET CHAMBERS; TWO-DIMENSIONAL CALCULATIONS; ACCELERATOR FACILITIES; ATMOSPHERES; CONTROL; ELEMENTS; ENGINES; FIREBALLS; FLUID MECHANICS; FLUIDS; GASES; HEAT ENGINES; MATHEMATICAL MODELS; MECHANICS; NONMETALS; NUCLEAR MODELS; RARE GASES; SEMICONDUCTOR DEVICES; SIMULATION; TARGETS; THERMONUCLEAR REACTORS; 700208* - Fusion Power Plant Technology- Inertial Confinement Technology

Citation Formats

Bartel, T J, Peterson, R R, and Moses, G A. Numerical simulation of an ICF target explosion in a stratified gas atmosphere. United States: N. p., 1986. Web.
Bartel, T J, Peterson, R R, & Moses, G A. Numerical simulation of an ICF target explosion in a stratified gas atmosphere. United States.
Bartel, T J, Peterson, R R, and Moses, G A. 1986. "Numerical simulation of an ICF target explosion in a stratified gas atmosphere". United States.
@article{osti_7005671,
title = {Numerical simulation of an ICF target explosion in a stratified gas atmosphere},
author = {Bartel, T J and Peterson, R R and Moses, G A},
abstractNote = {Two-dimensional radiation hydrodynamic simulations of a light ion fusion target generated microfireball in a stratified gas atmosphere have been performed. The target location in a two region cavity was varied with the intent to reduce the overpressure on the diodes at the walls of a target chamber with a single cavity gas. Helium and nitrogen at 15 torr were used as the cavity gases; target explosions of 200 and 800 MJ were investigated. It was found that placing the target in a helium region surrounded by nitrogen could reduce the overpressure by a factor of 2 when compared with a single gas cavity of nitrogen. The surface heat flux was also reduced from a pure helium gas cavity.},
doi = {},
url = {https://www.osti.gov/biblio/7005671}, journal = {Fusion Technol.; (United States)},
number = ,
volume = 10:3,
place = {United States},
year = {Sat Nov 01 00:00:00 EST 1986},
month = {Sat Nov 01 00:00:00 EST 1986}
}

Conference:
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