Accession Number : ADA184658

Title :   Visualization of the Flow Field Around a Generic Destroyer Model in a Simulated Turbulent Atmospheric Boundary Layer.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Bolinger,William K

PDF Url : ADA184658

Report Date : Jun 1987

Pagination or Media Count : 57

Abstract : An experimental flow visualization study was performed on a rectangular block and other elements that could be assembled in the form of a generic destroyer ship model. The purpose of the study was to visually analyze the flow field around the model in a simulated open ocean atmospheric boundary layer. To ensure correct simulation of the atmospheric boundary layer, both velocity profile and longitudinal turbulence intensities were matched. For the actual flow visualization studies, two techniques were used. During the on-body portion of the study, the ultraviolet lighting/fluorescent minituft technique was used. For the off-body portion, helium bubble system, with a neutral density centrifuge, was utilized. Both techniques produced excellent photographic results and allowed for direct comparison of the flow fields using the two flow visualization techniques.

Descriptors :   *BOUNDARY LAYER FLOW, *FLOW VISUALIZATION, SHIP MODELS, TURBULENT BOUNDARY LAYER, MARINE ATMOSPHERES, CENTRIFUGES, WIND TUNNEL TESTS, BUBBLES, FILAMENTS, COMPARISON, LIGHTING EQUIPMENT, PHOTOGRAPHIC ANALYSIS, THESES

Subject Categories : Fluid Mechanics
      Marine Engineering
      Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE