COMPUTER-SIMULATION OF NON-NEWTONIAN FLUID RHEOLOGY

Dissipative Particle Dynamics (DPD) is a new simulation technique that focuses on intermediate time and length scales. With this technique i t is possible to simulate the essential aspects of the rheological beh avior of polymeric liquids quite efficiently. Model studies show that DPD reveals the expected shear thinning and normal stress effects. We also show that the effects of thermodynamic solvent quality on the con figurations and rheological behavior of dissolved polymers can be stud ied with the DPD model.