Validation of a Forward Marching Procedure to Compute Tip Vortex Generation Process for Ship Propeller Blades

Abstract

The tip vortex flow field has a significant influence on the performance a ship propeller. The ability to compute the tip vortex flow field would be valuable aid in the design of ship propellers, and in the analysis of their performance. The present report demonstrates the feasibility of computing the tip vortex generation process with a forward-marching computation procedure. For the purpose of this study, turbulent flow test cases were considered. The results of the computations were compared with experimental data from Gray et al. (Ref. 1), and demonstrate the capability of the forward-marching procedure to accurately compute the flow processes in the tip vortex generation. The flow field is computed from a set of three-dimensional viscous flow equations with no empiricism introduced for the vorticity generated and shed at the propeller tip.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1988
Accession Number
ADA198836

Entities

People

  • F. J. De Jong
  • R. Levy
  • S. J.. Shamroth
  • T. R. Govindan

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Boundary Layer
  • Computational Fluid Dynamics
  • Coordinate Systems
  • Equations
  • Experimental Data
  • Flow Fields
  • Fluid Dynamics
  • Geometry
  • Inviscid Flow
  • Leading Edges
  • Marine Propellers
  • Pressure Distribution
  • Reynolds Number
  • Secondary Flow
  • Trailing Edges
  • Viscous Flow

Readers

  • Aerodynamics.
  • Computational Fluid Dynamics (CFD)