Accession Number : AD0725109

Title :   The Wake of a Source in a Two-Layer Fluid.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Bergin,J. M.

Report Date : 20 MAY 1971

Pagination or Media Count : 49

Abstract : The purpose of the report is to provide an analytical basis for evaluation of the internal wave system generated by a moving body in stratified fluids which can be represented by a two-layer structure. In view of the standard representation of rigid bodies by a distribution of hydrodynamic sources, the objective is achieved by developing analytical expressions for the disturbance due to a single source. Expressions are derived for the velocity field. The method of stationary phase, when applied to these expressions, yields a simplified description of the field far behind the source. An additional quantity, the displacement function, is introduced in order to describe the amount by which fluid particles are displaced in the vertical direction from their equilibrium position. (Author)

Descriptors :   (*WAKE, THERMOCLINES), (*SHIPS, WAKE), ARCTIC REGIONS, OCEAN WAVES, GLACIERS, MATHEMATICAL MODELS, SEA WATER, SOURCES

Subject Categories : Marine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE