Why PostCohesive is only assigned to particle LL

Hi everyone

In calc_force_dem.f file, the interaction between particle LL and its neighbour particle I is modeled. However, ‘force_coh’ is only assigned to particle LL through postcohesive(LL). Why ‘force_coh’ is not assigned to particle I at the same time, i.e.

PostCohesive(LL) = PostCohesive(LL) + FORCE_COH / PMASS(LL)
PostCohesive(I) = PostCohesive(I) + FORCE_COH / PMASS(I)

Particle LL and I may not be combined repeatedly during neighbour searching.

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