FRICTIONAL RESISTANCE OF RANDOMLY OSCILLATING SURFACES

The frictional resistance of randomly oscillating surfaces is studied by assuming that the oscillatory motion is a stationary Gaussian narrow-band random process. The approach is also based on simple explicit frictional resistance formulas for harmonic oscillations. The possibility distribution functions of the maximum surface shear stress for laminar flow as well as smooth turbulent and rough turbulent flow are presented. The maximum surface shear stress follows the Rayleigh distribution for laminar flow and the Weibull distribution for smooth turbulent and rough turbulent flow. Examples of the friction coefficients based on the mean values of the maximum surface shear stress for the three flow regimes are also given.

  • Supplemental Notes:
    • Marine Technology & Transportation: ODRA 95, 1st Intl Conf on Marine Technology; 20-22 Sept 1995; Szczecin, Poland & MARTRANS 95, 1st Intl Conf on Marine Transport in the 21st Century; 30 Aug-1 Sept 1995; Plymouth, UK. Procs. Publ by Computational Mechanics Publications, UK, ISBN 1 853123307. Section 2, p 41 [8 p, 17 ref, 2 fig]
  • Authors:
    • Myrhaug, D
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00718970
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 27 1996 12:00AM