Accession Number:

AD0262484

Title:

The Measurement of Unsteady Pressures in Wind Tunnels

Descriptive Note:

[Technical Report, Technical Report]

Corporate Author:

ADVISORY GROUP FOR AERONAUTICAL RESEARCH AND DEVELOPMENT PARIS (FRANCE)

Personal Author(s):

Report Date:

1958-03-01

Pagination or Media Count:

46

Abstract:

Practical solutions to the problem of accurately measuring unsteady pressures in wind tunnels are described, with emphasis on the response of pressure systems, calibration techniques and equipment, and wind-tunnel instrumentation. Basic guides for the selection of a pressure-gage-volume-connecting-tubing system are given. A cam-type pulsator calibrator with a sinusoidal pressure variation up to or - 3 psi and a frequency range up to 5000 csec is described. The minimum number of pressure gages required for lift and moment measurements is discussed. A brief comment on the interpretation of pressure fluctuations in terms of velocity fluctuations is given.

Descriptors:

Subject Categories:

  • Numerical Mathematics

Distribution Statement:

[A, Approved For Public Release]