[gmx-users] What is the meaning of negative surface tension?
gozdeeergin at gmail.com
Fri Sep 23 09:27:18 CEST 2016
I am simulating organic covered salty water system in order to estimate the surface tension. Force field is Charmm36 and water model in TIP3P.
Surface tension is -127 mN/m after 5 ns run. What is the meaning of negative surface tension?
I was expecting +30 ~ +40 mN/m but not negative.
Maybe my system was not under equilibrium conditions.
Will longer running solve the problem? Any help would be appreciated.
Thanks in advance.
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