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Gas Core Reactor Numerical Simulation Using a Coupled MHD-MCNP ModelAnalysis is provided in this report of using two head-on magnetohydrodynamic (MHD) shocks to achieve supercritical nuclear fission in an axially elongated cylinder filled with UF4 gas as an energy source for deep space missions. The motivation for each aspect of the design is explained and supported by theory and numerical simulations. A subsequent report will provide detail on relevant experimental work to validate the concept. Here the focus is on the theory of and simulations for the proposed gas core reactor conceptual design from the onset of shock generations to the supercritical state achieved when the shocks collide. The MHD model is coupled to a standard nuclear code (MCNP) to observe the neutron flux and fission power attributed to the supercritical state brought about by the shock collisions. Throughout the modeling, realistic parameters are used for the initial ambient gaseous state and currents to ensure a resulting supercritical state upon shock collisions.
Document ID
20080025730
Acquisition Source
Marshall Space Flight Center
Document Type
Contractor Report (CR)
Authors
Kazeminezhad, F. (Institute for Scientific Research Fairmont, WV, United States)
Anghaie, S. (Florida Univ. Gainesville, FL, United States)
Date Acquired
August 24, 2013
Publication Date
May 1, 2008
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
NASA/CR-2008-215408
M-1228
Funding Number(s)
CONTRACT_GRANT: NCC8-225
Distribution Limits
Public
Copyright
Public Use Permitted.

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