Modal methods for the neutron diffusion equation using different spatial modes
The behaviour of the neutrons inside a nuclear reactor core can be modelled by using the
time dependent neutron diffusion equation. Different time schemes have been used to …
time dependent neutron diffusion equation. Different time schemes have been used to …
A novel mathematical model for two-energy groups of the point kinetics reactor dynamics
The point kinetics equations for reactor dynamic systems are normally described and treated
for one-energy group, which modeled as stiff coupled differential equations, and their …
for one-energy group, which modeled as stiff coupled differential equations, and their …
Solution of the Lambda modes problem of a nuclear power reactor using an h–p finite element method
Lambda modes of a nuclear power reactor have interest in reactor physics since they have
been used to develop modal methods and to study BWR reactor instabilities. An h–p …
been used to develop modal methods and to study BWR reactor instabilities. An h–p …
Stabilization of chains of linear parabolic PDE–ODE cascades
Over the past decade, stabilization problems have been solved for various cascade and
“sandwich” configurations involving linear ODEs and PDEs of both hyperbolic and parabolic …
“sandwich” configurations involving linear ODEs and PDEs of both hyperbolic and parabolic …
[HTML][HTML] Moving meshes to solve the time-dependent neutron diffusion equation in hexagonal geometry
To simulate the behaviour of a nuclear power reactor it is necessary to be able to integrate
the time-dependent neutron diffusion equation inside the reactor core. Here the spatial …
the time-dependent neutron diffusion equation inside the reactor core. Here the spatial …
[PDF][PDF] Numerical techniques for the neutron diffusion equations in the nuclear reactors
The space-time neutron diffusion equations with multi-group of delayed neutrons are a
couple of the stiff nonlinear partial differential equations. The finite difference method is used …
couple of the stiff nonlinear partial differential equations. The finite difference method is used …
[HTML][HTML] Adaptive time-step control for modal methods to integrate the neutron diffusion equation
The solution of the time-dependent neutron diffusion equation can be approximated using
quasi-static methods that factorise the neutronic flux as the product of a time dependent …
quasi-static methods that factorise the neutronic flux as the product of a time dependent …
Spatial modes for the neutron diffusion equation and their computation
Different spatial modes can be defined for the neutron diffusion equation such as the λ, α
and γ-modes. These modes have been successfully used for the analysis of nuclear reactor …
and γ-modes. These modes have been successfully used for the analysis of nuclear reactor …
Block hybrid multilevel method to compute the dominant λ-modes of the neutron diffusion equation
The dominant λ-modes associated with a nuclear reactor configuration describe the neutron
steady-state distribution and its criticality. Furthermore, they are useful to develop modal …
steady-state distribution and its criticality. Furthermore, they are useful to develop modal …
[HTML][HTML] Time-dependent simplified spherical harmonics formulations for a nuclear reactor system
The steady-state simplified spherical harmonics equations (SP< mspacewidth=”− 0.3em”> N
equations) are a higher order approximation to the neutron transport equations than the …
equations) are a higher order approximation to the neutron transport equations than the …