Wall Interference on Two-Dimensional Supercritical Airfoils, Using Wall Pressure Measurements to Determine the Porosity Factors for Tunnel Floor and Ceiling.

Abstract

The effects of unequal porosity factors, ascribed to the floor and ceiling of two-dimensional wind tunnel test sections, are investigated with a simplified mathematical model that utilizes a point vortex and a point doublet placed mid-way between the two walls. Closed form solutions are derived, using the method of images for wall pressure distributions, and corrections to Mach number and model angle of attack.

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1974
Accession Number
AD0778378

Entities

People

  • A. J. Bowker
  • D. J. Peake
  • M. Mokry

Tags

DTIC Thesaurus Topics

  • Airfoils
  • Mach Number
  • Mathematical Models
  • Measurement
  • Models
  • Porosity
  • Pressure Distribution
  • Pressure Measurement
  • Supercritical Airfoils
  • Two Dimensional
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Fluid Dynamics.
  • Psychological Intervention/Treatment for Stress, Anxiety, PTSD, and Related Emotional and Cognitive Health Symptoms.