Effects of the side walls on the unsteady flow of a second-grade fluid in a duct of uniform cross-section

Erdogan M., İmrak C. E.

INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS, cilt.39, sa.8, ss.1379-1384, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39 Sayı: 8
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1016/j.ijnonlinmec.2003.12.004
  • Dergi Adı: INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1379-1384
  • Anahtar Kelimeler: second-grade fluid, unsteady flow, rectangular duct, effect of the side walls, IMPULSIVE MOTION, UNIDIRECTIONAL FLOWS, SUDDEN APPLICATION, 2ND-ORDER FLUID, FLAT-PLATE, 2ND GRADE, STEADY, EQUATIONS
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

In this paper, the effects of the side walls on the unsteady flow of a second-grade fluid in a duct of rectangular cross-section are considered. Two types of Unsteady flows are investigated. One of them is the Unsteady flow in a duct of rectangular cross-section moving parallel to its length and the other is the unsteady flow due to an applied pressure gradient in a duct of rectangular cross-section whose sides are at rest. It is shown that a Newtonian fluid reaches steady-state earlier than a second-grade fluid and the effect of the side walls on a second-grade fluid is more effective than that on a Newtonian fluid. (C) 2004 Elsevier Ltd. All rights reserved.