Extensional deformation of non-Newtonian liquid bridges
We present a numerical method for simulating the extensional dynamics of elongating filaments of non-Newtonian fluids in a filament stretching rheometer. The boundary element method, in conjunction with either the Oldroyd-B or the generalized multimode upper-convected Maxwell constitutive model, is used to calculate the transient evolution of the liquid interface, the applied force on the stationary end plate and the polymeric stresses. The numerical results are compared to experimental results.
generalized multimode upper-convected Maxwell constitutive model
scientific article; zbMATH DE number 1221087