On the effects of viscoelasticity on two-dimensional vortex dynamics in the cylinder wake


Sahin M. , OWENS R.

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, cilt.123, ss.121-139, 2004 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 123
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1016/j.jnnfm.2004.08.002
  • Dergi Adı: JOURNAL OF NON-NEWTONIAN FLUID MECHANICS
  • Sayfa Sayıları: ss.121-139

Özet

The present paper represents, as far as we are aware, the first linear stability analysis for inertial flows of a viscoelastic fluid around a bluff body. Our particular interest is the effect of polymer additives on the linear stability of two-dimensional viscous flow past a confined cylinder and our investigation involves both direct numerical simulation and the solution of a generalized eigenvalue problem arising from the linearized perturbation equations.