Use of Navier-Stokes Analysis in Section Design

Abstract

The Navier-Stokes analysis method and a design technique based on conformal mapping are combined to develop new 2-D thick sections. The Eppler- Somers design technique allows for fast design of arbitrary section shape. The well-validated David Taylor Navier-Stokes code is used to optimise the thickness of the section. From previous experimental results, the turbulence characteristics in the near-wake region correlate with the pressure spectra on the trailing edge of a 2-D lifting surface. Therefore, the turbulent kinetic energy, and the Reynolds shear stress are used as design parameters to develop new 2-D sections. Minimizing these parameters is assumed to provide desirable boundary layer and wake characteristics. The characteristics of one new section are compared with those of a baseline section to demonstrate the new foil design method.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA242074

Entities

People

  • Phuc N. Nguyen

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Classification
  • Computational Fluid Dynamics
  • Flow
  • Fluid Dynamics
  • Geometry
  • Kinetic Energy
  • Layers
  • Mechanical Properties
  • Pressure Distribution
  • Shear Stresses
  • Stresses
  • Thickness
  • Trailing Edges
  • Turbulence
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Business Analytics
  • Fluid Mechanics and Fluid Dynamics.