omidshy / aMD

A collection of Python codes to calculate physical properties from molecular dynamics simulations.
GNU General Public License v3.0
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analysis molecular-dynamics viscosity

Python codes for MD simulation analysis

A set of programs to compute physical properties from molecular dynamics (MD) simulations.

visco.py

Calculate the viscosity using components of the pressure tensor from a canonical ensemble (NVT) MD simulation using the Einstein/Green-Kubo relation, where the viscosity is computed from the integral of the pressure tensor elements or their autocorrelation function.

Usage: python visco.py -h

An example data-file 'press.data' is available in the example directory. The required values to run the example can be found in 'md.param' file.

vacf.py

Calculate self-diffusion coefficients from particle velocities. The self-diffusion coefficients are computed from velocity auto-correlation functions (VACF) using the Green-Kubo relation.