Fluids that cannot be described by the Navier-Stokes equations are called non-Newtonian fluids. Further, if these fluids possess elastic properties as well as viscous properties, then they are called viscoelastic fluids. Mathematical models for viscoelastic fluids are constantly being developed and tested in an attempt to improve the modelling process for these fluids. Here, two differential models for viscoelastic fluids are considered:
Computer simulation results obtained using the finite volume method are given for the following fluid flows:
Written by John Heywood. Maintained by G.W.Roberts. Latest modification to this page: 13 June 2001.