A theoretical model for estimation of drag force in the flow of non-newtonian fluids around spherical solid particles

Ceylan K., Herdem S., Abbasov T.

POWDER TECHNOLOGY, cilt.103, sa.3, ss.286-291, 1999 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 103 Sayı: 3
  • Basım Tarihi: 1999
  • Doi Numarası: 10.1016/s0032-5910(99)00025-x
  • Dergi Adı: POWDER TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.286-291
  • İnönü Üniversitesi Adresli: Hayır

Özet

A theoretical approach for estimation of the drag correlation coefficients in the flow of Newtonian or weak non-Newtonian liquids around spherical solid particles is presented. Some new analytical relations are derived by using a stream function and the energy dissipation equation to approximate the drag coefficients to the experimental data. It is shown that these relationships can be applicable in a wide range of Reynolds number, Re, up to Re < 1000 for the liquids with a flow behavior index, n, in the range of 0.5 < n < 1. The predicted coefficients from these relationships are in very good agreement with the experimental data given in the literature. (C) 1999 Elsevier Science S.A. All rights reserved.