Title: The assessment of the fuels thermal conductivity by Molecular Dynamics.
Authors: NICHENKO SERGIISTAICU Dragos
Citation: Proceedings of ICAPP 2011 p. Paper 11232
Publisher: Curran Associates, Inc.
Publication Year: 2011
JRC N°: JRC64312
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC64312
Type: Articles in periodicals and books
Abstract: This work is a review of the papers devoted to investigation of the thermal conductivity in single crystal and polycristalline UO2 and (U,Pu)O2 using molecular dynamics simulations, with inter-atomic interactions described by different potential models. Two main approaches are used to calculate the thermal conductivity by MD. In the first approach the thermal conductivy is given by the autocorrelation fuction of the energy current based on the Green-Kubo relations. In the second approach the thermal conductivity is defined from the energy current and temperature gradient using the Fourier law. The main results of the molecular dynamics simulation of the heat conductivity if the UO2 and (U,Pu)O2 are presented.
JRC Directorate:Nuclear Safety and Security

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