Interaction of a deep-water wave with a vertical cylinder: effect of self-excited vibrations on quantitative flow patterns

Ozgoren M., Rockwell D.

JOURNAL OF FLUID MECHANICS, cilt.572, ss.189-217, 2007 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 572
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1017/s0022112006003399
  • Dergi Adı: JOURNAL OF FLUID MECHANICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.189-217
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Interaction of a deep-water wave with a cylinder gives rise to ordered patterns of the flow structure, which are quantitatively characterized using a technique of high-image-density particle image velocimetry. When the cylinder is stationary, the patterns of instantaneous flow structure take on increasingly complex forms for increasing Keulegan-Carpenter number KC. These patterns involve stacking of small-scale vorticity concentrations, as well as large-scale vortex shedding. The time-averaged consequence of these patterns involves, at sufficiently high KC, an array of vorticity concentrations about the cylinder.