A NUMERICAL COMPARISON OF MORISON EQUATION COEFFICIENTS FOR OSCILLATORY FLOWS: SINUSOIDAL AND NONSINUSOIDAL

Numerical solutions have been obtained for a two-dimensional, viscosity-dominated oscillating flow past a rigid circular cylinder. The solutions are obtained in vorticity/stream-function variables and forces on the cylinder have been calculated for flows oscillating sinusoidally and nonsinusoidally at Keulegan-Carpenter numbers of 1.02, 1.4, 2.4 and 4.8. Very good agreement was found between calculated and experimental force coefficients for the sinusoidal oscillations. As expected, the nonsinusoidal oscillation results did not agree with the sinusoidal results, except for the inertia coefficients which were essentially the same. The maximum dimensionless force coefficient was found to decrease more rapidly with increasing KC for the sinusoidal fluid oscillation.

• Supplemental Notes:
  • OMAE 1991, 10th Intl Conf on Offshore Mechanics & Arctic Engng; 23-28 June 1991; Stavanger, Norway. Sponsored by ASME et al. Procs. Publ by ASME, Vol 1, Part A, p 29 [9 p, 20 ref, 1 tab, 11 fig]
• Authors:
  • Zhang, Jianping
  • Dalton, C
  • Wang, X
• Publication Date: 1991

Language

• English

Subject/Index Terms

• TRT Terms: Cylindrical bodies; Flow; Fluid dynamics; Oscillation
• Uncontrolled Terms: Fluid flow
• Old TRIS Terms: Morison equation
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00702181
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM