Numerical simulations of viscoelastic flow over a confined cylinder in microchannels

  title={Numerical simulations of viscoelastic flow over a confined cylinder in microchannels},
  author={Shenghui Lei and K. P. Nolan},
  journal={Fourteenth Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm)},
In this study, several 2D numerical simulations on a non-Newtonian flow over a confined cylinder placed in a rectangular microchannel are carried out at different Weissenberg (Wi) numbers. In particular, the Oldroyd-B model implemented in open source code OpenFOAM is employed to capture the three basic ingredients of polymer rheology, viz., anisotropy, elasticity and relaxation. Numerical calculations indicate that the flow structure particularly in the downstream is influenced by the presence… CONTINUE READING
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