Restoring velocity in a simulation

GROMACS version: gromacs/2021.5-gcc11.2.0-mkl
GROMACS modification: Yes/No
Here post your question: Hello everybody, I am trying to simulate a system where there is a species which has a velocity of 6 nm/ps which I have specified in the input gro file.

But eventually as the simulation proceeds due to collision with other species it dissipates energy and loses this velocity and eventually slows down.

Is there any tool or mdp parameters in gromacs which will allow me to restore velocities for example after every 10 ps for the species as it’s input velocity such that the species regularly gets these kicks of velocities?

No, there is no option to do that. But why would you want that?

You can couple part of the system to a higher temperature.