Blade Section Lift Coefficients for Propellers at Extreme Off-Design Conditions

Abstract

The Propeller Force Module (PFM) code developed by Analytical Methods Inc. (AMI) for calculating propeller side forces during maneuvering simulation studies requires inputs of propeller blade sectional lift, drag, and moment data. A set of steady two-dimensional foil force data for NACA profiles is normally used by PFM as input. Wake survey data show that the propeller blade sections will encounter large spatial variations in angle of attack during maneuvers. A literature search is conducted to review the effect of unsteady angle of attack fluctuations on two-dimensional hydrodynamic forces. Methods to calculate unsteady hydrodynamic loads are evaluated, and a method selected for use with the PFM code.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1997
Accession Number
ADA333573

Entities

People

  • Donald Fuhs
  • Young Shen

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Blades
  • Boundary Layer
  • Coefficients
  • Computational Fluid Dynamics
  • Computational Science
  • Convection
  • Experimental Data
  • Flow Separation
  • Geometry
  • Marine Propellers
  • Pressure Distribution
  • Pressure Gradients
  • Propeller Blades
  • Propellers
  • Reynolds Number
  • Turbulent Mixing
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Marine Hydrodynamics