Dear gmx-users, I am pretty confused about how to calculate the surface tension of a bilayer which with its bilayer normal in y-direction rather than z-direction (as the default).
How does the Surf*SurfTen option in g-energy work? Does it take z as a default bilayer normal? If so, how can I calculate the surface tension in my case? What if I use g_energy to get Pxx, Pyy and Pzz, than calculate my surface tension as: gamma= (Pyy - (Pxx+Pzz)/2) * Lz What exactly is the "Lz"? Is it the length of the bilayer normal or the length of either box-x or box-z (in my case are the bilayer plane). I will be vary thankful if anyone would kindly help me or discuss it with me. Thank you for your precious time. Joanne --
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