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Updated: Jun 10, 2026

Analyzing Melts and Fluids from Ab Initio Molecular Dynamics Simulations with the UMD Package
Published on: September 17, 2021
A homogeneous nonequilibrium molecular dynamics method for calculating the heat transport coefficient of mixtures and
Kranthi K Mandadapu1, Reese E Jones, Panayiotis Papadopoulos
1Department of Mechanical Engineering, University of California, Berkeley, California 94720-1740, USA.
Abstract:
This work generalizes Evans' homogeneous nonequilibrium method for estimating heat transport coefficient to multispecies molecular systems described by general multibody potentials. The proposed method, in addition to being compatible with periodic boundary conditions, is shown to satisfy all the requirements of Evans' original method, namely, adiabatic incompressibility of phase space, equivalence of the dissipative and heat fluxes, and momentum preservation. The difference between the new equations of motion, suitable for mixtures and alloys, and those of Evans' original work are quantified by means of simulations for fluid Ar-Kr and solid GaN test systems.
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