Dear Users: I am in the process of setting up a new system. I have a 8.0*8.0*8.0 nm3 system which include 27800 molecules. When the system approach equilibrium, I found the potential energy is +3e5 (big positive number). Is this normal? Since based on my experience, for systems in such size, the potential energy is usually a big negative number? Does this mean that my force field parameter or molecule structure have problems? Thanks in advance!
-- Yanmei Song Ph.D. Candidate Department of Chemical Engineering Arizona State University
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