Sketch of the piecewise conservative force between the particles in the modified DPD model.
RDF of the monomer systems when we add the rigid cores to the particles. The RDF of the monomer system in standard DPD is also shown for comparison.
The schematic representation of the geometry constraint condition of the bond crossing in (a) three dimensions and (b) two dimensions.
Snapshot of a typical configuration for a chain with . For clarity, we only show a fraction of size out of the simulation box.
(a) Pressures obtained from the simulations of standard and modified DPD models (symbols) and the corresponding parabola fits (lines). (b) divided by , which is calculated from (a). All results are obtained with the parameter .
Time evolution of the MSDs of the center of mass and of the innermost monomer divided by (a) and (b) , respectively.
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