fix_modify

Dear all

Hi

Thanks for your attention.I simulate rigid water Tip4p/2005 inside Mos2 nanotube which I wanted induced heat gradient by considering cold and hot region.
my question is about below thermostat for cold and hot is correct? what is means fix_modify?

region R1 block INF INF INF INF {x1} {x2} units box

compute T1 all temp/region R1

fix N all langevin 310 310 100 12345 tally yes
fix_modify N temp T1

Thanks

Dear all
Hi

Thanks for your attention.I simulate rigid water Tip4p/2005 inside Mos2
nanotube which I wanted induced heat gradient by considering cold and hot
region.
my question is about below thermostat for cold and hot is correct?

​sorry, but this mailing list is not an input validation service. if you
want to make certain that your input is correct, please do what everybody
else does and set up a (simple enough) simulation ​where you know the
results and then check how your input setting correspond with the expected
result.

what is means fix_modify?

​please look it up in the LAMMPS manual. all that can be said here is
already written there.

axel.​