New question #270503 on Yade:
https://answers.launchpad.net/yade/+question/270503

Hi all,

I have noticed that line 279 of CohesiveFrictionalContactLaw.cpp (here: 
https://github.com/yade/trunk/blob/48bb1a66dd0713de1a51a0c3562399133c87fd5e/pkg/dem/CohesiveFrictionalContactLaw.cpp#L279)
 gives the formula for normal adhesion calculation as follows:
contactPhysics->normalAdhesion = 
std::min(sdec1->normalCohesion,sdec2->normalCohesion)*pow(std::min(Db, Da),2);

If adhesion is being calculated between two spheres, this means that the 
effective area of contact between the spheres is taken to be equal to the 
square of the radius of the smallest sphere. Should it really be pi*r^2 instead 
of r^2?

Cheers,
Christopher Stanbridge

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