In my system, a freezing wall is successfully built in the water by the commond “fix wall set force 0.0 0.0 0.0”. Therefor, there is no force acting on these wall atoms. However,I want to dump the actual force exerting on the fixed wall (from the solvent). Is there a simple way to obtain it ? If not, Can someone tell me how to modify the source procedure?
Thanks a lot.