A Potential Flow Solution on Marine Propeller and Axial Rotating Fan

Abstract

Integral equations are derived to model the solid surfaces and the inlet condition for both external and internal flows with an axially rotating element. Vortex filaments are used to simulate the lifting surfaces. Global iterations for surface-panel source densities and vortex strengths are used in conjunction with the Neumann iterations for solving integral equations. A special kernel treatment is adopted in the solution scheme of the integral equation. Solutions converge within 10-20 iterations. Calculated results and measured data for a propeller tested in open water are in good agreement. Predictions are also made for an axial-flow pump. The overall performance parameters for the pump agree within a few percent of the design values. Keywords: Propeller; Potential flow; Integral equation; Lifting surface; Vortex.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1988
Accession Number
ADA198781

Entities

People

  • C. W. Jiang
  • T. W. Bein
  • Y. T. Lee

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Axial Flow
  • Classification
  • Equations
  • Flow Fields
  • Integral Equations
  • Integrals
  • Lifting Surfaces
  • Marine Propellers
  • Measurement
  • Open Water
  • Potential Flow
  • Pressure Distribution
  • Propeller Pumps
  • Propellers
  • Propulsion Systems
  • Security
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Calculus or Mathematical Analysis