PLANE SURFACE SUDDENLY SET IN MOTION IN A NON-NEWTONIAN FLUID


ERDOGAN M.

ACTA MECHANICA, cilt.108, ss.179-187, 1995 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 108
  • Basım Tarihi: 1995
  • Doi Numarası: 10.1007/bf01177337
  • Dergi Adı: ACTA MECHANICA
  • Sayfa Sayıları: ss.179-187

Özet

The now field of a fluid being called ''the third order fluid'' or the ''fluid of grade three'' is considered for a non-Newtonian now in the vicinity of a plane wall, suddenly set in motion. The velocity field of the flow is described by a fourth order, non-linear partial differential equation. The solution of this differential equation shows that for short time a strong non-Newtonian effect is present in the velocity field. However, for long time the velocity field becomes a Newtonian one.