High-Speed Investigation of Skin Wrinkles on Two NACA Airfoils

Abstract

The affects on the aerodynamic characteristics of skin wrinkles on the forward part of the upper surface of two NACA airfoils, the NACA 66, 1-115 and 23015 sections, at speeds up to Mach number 0.73 were investigated and the results compared with those obtained for the same two airfoils under smooth conditions. No appreciable change in normal-force or pitching-moment characteristics was caused by the wrinkle on an airfoil section. The drag was greater for the wrinkled configuration than for the smooth one.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1946
Accession Number
ADB184823

Entities

People

  • Harold L. Robinson

Organizations

  • National Advisory Committee for Aeronautics

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Characteristics
  • Aeronautical Laboratories
  • Aircrafts
  • Airplanes
  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Flow
  • Leading Edges
  • Mach Number
  • Measurement
  • Pressure Distribution
  • Pressure Measurement
  • Static Loads
  • Trailing Edges
  • Turbulent Boundary Layer
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Psychological Intervention/Treatment for Stress, Anxiety, PTSD, and Related Emotional and Cognitive Health Symptoms.