Investigation of the Suction System and Boundary-Layer Characteristics on a High-Lift, BLC L-19 Test Aircraft

Abstract

The report presents the results of a test program which was intended to document the boundary-layer control system characteristics of the high-lift L-19 aircraft. This aircraft incorporates a distributed-suction, turbulent- boundary-layer control system which allows trimmed lift coefficients of 4.8 to be developed. In addition to presenting the description of the suction hole distribution and computed values of the suction velocity distribution, comparisons are made between the measured boundary-layer characteristics and one empirical, turbulent-boundary-layer profile description. The large influence of suction velocity on the wall shear stress is shown through the use of the momentum integral equation.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1973
Accession Number
AD0766305

Entities

People

  • L. J. Mertaugh
  • S. Burt

Organizations

  • Mississippi State University

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Boundary Layer
  • Boundary Layer Control
  • Control Systems
  • Engineering
  • Fluid Mechanics
  • Geometry
  • High Lift
  • Integral Equations
  • Measurement
  • Measuring Instruments
  • Mechanical Engineering
  • Pressure Distribution
  • Pressure Measurement
  • Shear Stresses
  • Test Equipment
  • Turbulent Boundary Layer

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Computer Science.
  • Fluid Dynamics.