On 23/02/2012 10:26 AM, Jose Borreguero wrote:
Dear GROMACS users,
While simulating a DLPC membrane, I noticed that it tends to diffuse
along the normal (Z-axis) component. Is there a 'standard' restrain
that is used to prevent such diffusion?
The first option I thought was to restrain the center of mass of the
whole membrane along the Z-axis, but I don't know what is a reasonable
value for the force constant.
If anyone has any experience dealing with this kind of problem, please
do reply.
Diffusion of the center of mass of the whole system is something that
can be removed by an existing mechanism. See manual 7.3.3
Mark
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