Experimental Investigation of Dynamic Stall.

Abstract

This thesis discusses an experimental investigation of dynamic stall for an NACA 0015 airfoil rotated at different constant angular rates. It describes a microcomputer-based automatic data acquisition system capable of acquiring 1000 items of data per second. When this information was used to predict stall and compared with film-data stall indications of the same test runs, there was excellent correlation between them. Results of the investigation showed a consistent correlation between the stall angle at dynamic conditions and the nondimensionalized angular rate. Experimental data was obtained for non-dimensional angular rates (defined as one half the chord times the angular rate divided by free stream velocity) in the range of .005 to .06. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1983
Accession Number
ADA135846

Entities

People

  • D. C. Daley

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Cameras
  • Computer Programs
  • Computers
  • Data Acquisition
  • Flow
  • Free Stream
  • Measurement
  • Motion Picture Cameras
  • Personal Computers
  • Power Supplies
  • Pressure Distribution
  • Pressure Measurement
  • Pressure Transducers
  • Time Intervals
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Fluid Mechanics and Fluid Dynamics.
  • Solar Physics