Occurrences of Vortices at an Intake of Point Sink Character

Yildirim N., EROĞLU N., TAŞTAN K.

TEKNIK DERGI, cilt.23, sa.1, ss.5799-5812, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 1
  • Basım Tarihi: 2012
  • Dergi Adı: TEKNIK DERGI
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.5799-5812
  • Anahtar Kelimeler: Intake, vortex, air-entrainment, critical submergence, vortex prevention
  • Gazi Üniversitesi Adresli: Evet

Özet

In this study, the occurrence of vortices entering the intake of point sink character is explained by fluid mechanics principles. All types of boundaries (air, solid, fluid interface and flow-dividing subsurface) cause obstruction effects on the intake flow. A vortex basically originates from the boundary that has obstruction effects on the intake flow. All vortices originating from the free-surface, flow-dividing surface, fluid-interface and solid boundaries are "subsurface-vortices" of the same nature. Experiments included in this study have indicated that strainer-conic and a strainer-pipe type structures prevent the vortices effectively.