Effect of the Reynolds number on flow bifurcations and eddy genesis in a lid-driven sectorial cavity

Bilgil H., Gurcan F.

JAPAN JOURNAL OF INDUSTRIAL AND APPLIED MATHEMATICS, cilt.33, sa.2, ss.343-360, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 33 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s13160-016-0212-1
  • Dergi Adı: JAPAN JOURNAL OF INDUSTRIAL AND APPLIED MATHEMATICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.343-360
  • Anahtar Kelimeler: Bifurcation, Eddy, Finite element, Flow structure, Stagnation point, Streamline, STOKES-FLOW, CONVECTION, SURFACES
  • Kayseri Üniversitesi Adresli: Hayır

Özet

This paper presents the two-dimensional (2D) steady incompressible flow in a lid-driven sectorial cavity. In order to analyze the flow structures, the 2D Navier-Stokes equations are solved by using the finite element method. Different cases of the cavity aspect ratio A and three cases of the speed ratios of the upper and the lower lids are considered. The finite element formulation for the governing equations is adopted via the velocity-pressure formulation. By varying A for each S, the effect of the Reynolds number on the streamline patterns and their bifurcations are investigated in range . A comparison between the obtained results and some earlier studies is presented.