fix_modify AtC transfer thermal control

syntax

fix_modify AtC transfer thermal control <control_type> <optional args="">

fix_modify AtC transfer thermal control rescale <frequency>

fix_modify AtC transfer thermal control hoover

fix_modify AtC transfer thermal control flux <boundary_integration_type> <face_set_id(optional)>

examples

fix_modify AtC transfer thermal control none
fix_modify AtC transfer thermal control rescale 10
fix_modify AtC transfer thermal control hoover
fix_modify AtC transfer thermal control flux bndy_faces

description

Sets the energy exchange mechansim from the finite elements to the atoms, managed through a control algorithm. Rescale computes a scale factor for each atom to match the finite element temperature. Hoover is a Gaussian least-constraint isokinetic thermostat enforces that the nodal restricted atomic temperature matches the finite element temperature. Flux is a similar mode, but rather adds energy to the atoms based on conservation of energy. Hoover and flux allows the prescription of sources or fixed temperatures on the atoms.

restrictions

only for be used with specific transfers : thermal (rescale, hoover, flux), two_temperature (flux)
rescale not valid with time filtering activated

related

default

none
rescale frequency is 1
flux boundary_integration_type is interpolate
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