Hood Canal Conditions. Calculations of Vessel Roll Angle.

Abstract

The first part of the report contains a general parametric analysis of the heeling angle of a submarine exposed to currents. The Current is assumed to have an arbitrary velocity distribution with respect to depth and to lay within a plane perpendicular to the length axis of the submarine. In the second part, specific observed current conditions from Hood Canal, Washington are applied. Records from a total of ten current meters are evaluated and applied in computing cumulative histograms of the heeling angle. The 'u' and 'v' co-ordinate system for the velocity components is rotated (relative to the true North) by two angles (-10 and +50 degrees angular) to reflect actual location of the mooring piers. Also, the effect of both flooding and ebbing currents is evaluated by presenting the analysis for both positive and negative velocity components.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1976
Accession Number
ADA039502

Entities

People

  • Lawrence H. Larsen

Organizations

  • University of Washington

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • California
  • Computer Programs
  • Contractors
  • Coordinate Systems
  • Drag
  • Engineering
  • Flow
  • Mathematical Analysis
  • Metacentric Height
  • Military Research
  • Parametric Analysis
  • Research Facilities
  • Submarine Hulls
  • Submarines
  • Test Facilities
  • United States
  • Wind Tunnels

Readers

  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Marine Hydrodynamics
  • Oceanography.