Release energy of a rigid body

Hi LAMMPS users,

I have a question. Is possible with LAMMPS make a system where I have a rigid body (using fix rigid) that release energy (using fix heat) from its body but the energy in the body does not change, what means that the energy of the body remains constant?

Hi LAMMPS users,

I have a question. Is possible with LAMMPS make a system where I have a
rigid body (using fix rigid) that release energy (using fix heat) from its
body but the energy in the body does not change, what means that the energy
of the body remains constant?

yes and no.

i don't think that there is any feature available that can do this.
and because it is rigid, it cannot transfer kinetic energy directly.
however, it should be possible to write a fix that would apply a
randomized, incremental, small, amount of kinetic energy to all atoms
in the vicinity of a given group of atoms (excluding atoms that are in
that group). it requires you to do some C++ programming and some
convincing/charming/bribing of a person that knows how to do it...

axel.