A ESTIMATION OF INERTIA COEFFICIENT OF A HORIZONTAL CIRCULAR CYLINDER IN WAVES AT LOW KC NUMBER

The inertia force acting on a horizontal circular cylinder in waves significantly decreases with increasing Kc number at low Kc numbers. The rapid reduction of inertia force is caused by circulating flow around the cylinder. The strength of the circulation around a horizontal cylinder in regular waves is approximately estimated using a simple vortex shedding model. From this model, it is deduced that the inertia coefficient is given by Cm=2-(2/pi 2)Kc2. The results by this simple formula are in good agreement with experimental ones at Kc less than 2.5. Wave forces acting on a horizontal circular cylinder in irregular waves are also estimated using the simple vortex shedding model.

  • Supplemental Notes:
    • J Kansai Soc Naval Arch, n 219, March 1993, p 135 [7 p, 9 ref, 10 fig]
  • Authors:
    • Otsuka, K
    • Ikeda, Y
  • Publication Date: 1993

Language

  • Japanese

Subject/Index Terms

Filing Info

  • Accession Number: 00716195
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Feb 28 1996 12:00AM