Dear all,
I just implemented the Van Der Waals force model on LIGGGHTS. In order to validate my numerical model, I need to know the non-contacting van der Waals force between two interacting particles in LIGGGHTS.
Actually, I tried to compute the aforementioned force using 'compute 1 all pair/gran/local id force' in LIGGGHTS, however, the results only contain some contacting forces.
I would like to know whether LIGGGHTS can output or compute this type of non-contacting force now? If not, I need to write a 'fix' function to write this kind of forces?
I am glad to hear any suggestions on this issue.
With kind regards,
Huihuang