Flow Field Measurements Using Hotwire Anemometry.

Abstract

A computer controlled data acquisition system utilizing hotwire anemometry has been designed, built, and installed at the Low Speed Wind Tunnel Facility. All relevant wind tunnel data is obtained by the use of a computer guided data acquisition system. Two computer programs were written to coordinate hotwire system calibration with hotwire experimentation. An experiment, Wake Velocity Profile Analysis and Drag Coefficient Measurement of an Airfoil, was used as a vehicle to test the system. The final output of the data acquisition system, including graphical information, compared favorably with previous results from an older data acquisition system already in use. Drag coefficient output compared very favorably to data supplied by the National Advisory Committee on Aeronautics.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1987
Accession Number
ADA187029

Entities

People

  • Gregory J. Doremus

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • C4I
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Application Software
  • Computer Programs
  • Computers
  • Dynamic Pressure
  • Flow Fields
  • Fluid Dynamics
  • Fluid Flow
  • Heat Transfer
  • Hydrodynamics
  • Instrumentation
  • Measurement
  • Pressure Transducers
  • Static Pressure
  • Steady Flow
  • Test Facilities
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Computer Science.
  • Defense Acquisition Program Management
  • Fluid Dynamics.