Particle stress in suspensions of soft objects

T. Kruger, F. Varnik, D. Raabe
2011 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences  
In a suspension of extended objects such as colloidal particles, capsules or vesicles, the contribution of particles to the stress is usually evaluated by first determining the stress originating from a single particle (e.g. via integrating the fluid stress over the surface of a particle) and then adding up the contributions of individual particles. While adequate for a computation of the average stress over the entire system, this approach fails to correctly reproduce the local stress. In this
more » ... work, we propose and validate a variant of the method of planes which overcomes this problem. The method is particularly suited for many-body interactions arising from, for example, shear and bending rigidity of red blood cells.
doi:10.1098/rsta.2011.0090 pmid:21576155 fatcat:3eg7dyu5q5ce3ewtytfjsdkpla