Accession Number : ADA187029

Title :   Flow Field Measurements Using Hotwire Anemometry.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Doremus, Gregory J

PDF Url : ADA187029

Report Date : Sep 1987

Pagination or Media Count : 105

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.

Descriptors :   *DATA ACQUISITION, *FLOW FIELDS, *HOT WIRE ANEMOMETERS, AIRFOILS, CALIBRATION, COEFFICIENTS, COMPUTER PROGRAMS, DRAG, EXPERIMENTAL DATA, GRAPHICS, MEASUREMENT, OUTPUT, PROFILES, VELOCITY, WAKE, WIND TUNNEL TESTS, COMPUTER APPLICATIONS, TEST METHODS, THESES

Subject Categories : Aerodynamics
      Fluid Mechanics
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE