Accession Number:

AD0658172

Title:

ULTRA LOW-SPEED ANEMOMETRY,

Descriptive Note:

Corporate Author:

COLORADO STATE UNIV FORT COLLINS FLUID DYNAMICS AND DIFFUSION LAB

Personal Author(s):

Report Date:

1967-06-01

Pagination or Media Count:

130.0

Abstract:

An investigation of low-speed 0-2 ftsec anemometers is presented. First the design, the characteristics and the calibration of a very low-speed micro wind tunnel are described. Then the principle, operation and performance of three different anemometers at these low speeds are discussed. These instruments are 1 hot-spot anemometer, based on the measurement of the traveling time of a hot cloud, 2 drag anemometer which consists of a small plate mounted to the moving coil mechanism of a micro-ammeter, 3 constant temperature hot-wire anemometer. The comparison of the merits and disadvantages of these instruments shows that in most instances the hot-wire anemometer is superior to the two other anemometers. Author

Subject Categories:

  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE