Appendage Effects on Propeller Inflow.

Abstract

A simplified method for computing the propeller inflow velocity on ships with propellers mounted on the side or underneath, such as destroyers, is developed. The method utilizes the superposition of quasi-two-dimensional wake calculations of struts and shafts and the accurate calculation of the nominal 3-D boundary layer and potential flow that occurs on the bare hull. It is possible to calculate the nominal flow for these cases because the propellers are mounted forward of the stern region. There the thin boundary layer calculation methods are valid. Originator supplied keywords include: GHR (General Hydrodynamics Research) program; Boundary layers; Ships; Appendage drag; Propeller inflow; Wakes; and Viscous drag.

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Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1985
Accession Number
ADA152396

Entities

People

  • C. H. Von Kerczek
  • G. H. Christoph

Organizations

  • Leidos

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Destroyers
  • Drag
  • Flow
  • Friction
  • Layers
  • Measurement
  • Potential Flow
  • Propellers
  • Reynolds Number
  • Ships
  • Skin Friction
  • Thickness
  • Three Dimensional
  • Two Dimensional
  • Uss Arleigh Burke
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Combustion and Flow Dynamics.
  • Marine Hydrodynamics