Dear sir,<br>
I
want to put a constrain into my system. I am simulating lipid bilayer
membrane by GROMACS. I want to put a virtual wall at the z-axis in my
system so that no lipid can move through the virtual wall. In a code
language, it is just this : for lipid : if z < 60<br>
{<br>
......<br>
}<br>
where two layer of lipid is distributing from z= 20 to 70. <br>
Again, this condition is applicable only on lipids where water molecule can move freely according to its nature.<br>
Could you please tell me how to do it? If any code change is necessary
in the source code of the Gromacs, then please tell me where I put the
constrain.<br>
Thanking you,<br>
Anirban<br>
<br>