Hello, I am looking for a way in Gromacs that I could apply a uniform shear. I have looked through the manual, and it seems that the methods for applying shear are using the cos_acceleration option or the deform option. The deform option may work for me. However, I was reading in Allen and Tildesley's book about a method for applying a uniform shear which involves a modification to the PBC (In fact, I think it is what's depicted on the book's cover). Essentially, the simulation box is held fixed, and the boxes above move in one direction (+x) and the boxes below move in the opposite direction (-x). Is there any way that I can do something like this in Gromacs? I have searched the mailing list as well, but have come up empty handed. My system is a lipid bilayer in water. I would like to look at this system's response to a shear force, but I am not interested in any viscosity calculations, so I am not sure cos_acceleration would be helpful to me. If I use deform, I am worried that at long times I will get a simulation box with some very sharp angles. If the above procedure is not possible in Gromacs, would it make sense to use the deform option in a sinusoidal fashion doing several simulations where the box is first deformed one way and then deformed back again in the opposite direction?
Thank you, Mike _______________________________________________ gmx-users mailing list gmx-users@gromacs.org http://www.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to [EMAIL PROTECTED] Can't post? Read http://www.gromacs.org/mailing_lists/users.php