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Temporal Accuracy and Efficiency of a Modern Solution
Method
Applied to a Simplified Nuclear Reactor Core Model
Vince Mousseau
Los Alamos National Laboratory
Hosted by Barry Smith
10:30 AM, June 20, 2006
Building 221, Room A216
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| Abstract |
This talk will discuss the physics-based preconditioned Jacobian-free
Newton-Krylov solution method applied to a model of a nuclear reactor
core. This model will include six equations for the two-phase fluid
flow, one equation for nonlinear heat conduction, and two equations for
neutron diffusion and precursor concentration. The details of the
solution method will be discussed. Results will be presented for a
control rod ejection transient. These results will show that the new
solution algorithm is faster and more accurate that the traditional
operator split and linearized approach. |
