Accession Number:

ADB084604

Title:

The Hydrodynamic Wake of a Surface Ship: Theoretical Foundatons

Descriptive Note:

Interim rept. 1981-1984

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1984-06-28

Pagination or Media Count:

30.0

Abstract:

A model for the hydrodynamic wake of a surface ship is developed. Neglecting only ambient stratification and ambient surface films, we begin with general equations and boundary conditions for the flow field and reduce the problem to a solvable one through a series of approximations. Among the assumptions are l the fluid dynamics are independent of the gas particle bubble dynamics 2 the ship undergoes only small motions about a uniform, mean motion 3 the free surface elevations are small and 4 the ship induced turbulence is significantly stronger than the ambient turbulence. With these approximation, the overal problem becomes separable into one governing the ship induced flow in otherwise still water and one governing the interaction of the background with the ship induced flow.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE