@Article{CiCP-25-5, author = {}, title = {Neutron Discrete Velocity Boltzmann Equation and Its Finite Volume Lattice Boltzmann Scheme}, journal = {Communications in Computational Physics}, year = {2019}, volume = {25}, number = {5}, pages = {1446--1468}, abstract = {

Simulation of neutron transport process plays an important role in nuclear reactor computation and the numerical technique becomes the focus of nuclear reactor engineering. This paper provides a neutron finite volume lattice Boltzmann method (NFV-LBM) for solving the neutron discrete velocity Boltzmann equation (NDVBE), in which the NDVBE is deduced from the neutron transport equation (NTE) and the NFV-LBM is obtained by integrating the NDVBE. The macroscopic conservation equations recovered from the NDVBE via multi-scale expansion shows that the NDVBE has higher-order accuracy than diffusion theory, and the numerical solutions of neutron transport problems reveal the flexibility and applicability of NFV-LBM. This paper may provide some alternative perspectives for solving the NTE and some new ideas for researching the relationship between the NTE and other approximations.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.OA-2017-0203}, url = {https://global-sci.com/article/79928/neutron-discrete-velocity-boltzmann-equation-and-its-finite-volume-lattice-boltzmann-scheme} }