Accession Number : AD0754645

Title :   The Interaction of Waves and Turbulence in Water.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY HYDRAULIC ENGINEERING LAB

Personal Author(s) : Skoda,John D.

Report Date : JUN 1972

Pagination or Media Count : 126

Abstract : The report investigates a system in which water waves are generated and propagated in a turbulent flow field. Growth of wind wave spectra and decay of monochromatic waves are considered. For monochromatic waves the turbulence in the water can greatly increase the rate of wave energy dissipation and that the data can be fitted by an equation with an eddy viscosity term proportional to the wave height, the phase speed of the waves, and the intensity of the larger scale turbulence. Growth of wind waves on turbulent water is faster than in still water; however, maximum wave height in turbulent water is always lower than in still water. Wave energy spectra at the longer fetches in turbulent water show more wave energy at low frequency and less at high frequency than those for still water. Turbulence in water alters the rate of transfer of energy from the wind to the waves, the maximum height allowed and the distribution of wave energy among the various frequencies. (Author)

Descriptors :   (*OCEAN WAVES, WIND), EQUATIONS OF MOTION, GRAVITY, VISCOSITY, GRAPHICS, INTERACTIONS, COMPUTER PROGRAMS, WATER WAVES, TURBULENCE, THESES

Subject Categories : Physical and Dynamic Oceanography
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE