Accession Number : AD0851892

Title :   A Technique for Measuring Unsteady Pressures.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Johnson, Ronald Bruce

Report Date : SEP 1968

Pagination or Media Count : 60

Abstract : A system for measuring unsteady pressures in flow fields employing a remote transducer and thin plastic pressure transmitting lines has been designed and built. The static and dynamic characteristics of the system were determined experimentally. The measuring system was subsequently integrated into a two-dimensional wind tunnel model consisting of a symmetrical airfoil with a plain oscillating flap. The flap was harmonically oscillated, and the measuring system was used to determine both the steady and unsteady pressures at a point near the flap hinge line. The static and dynamic results were then compared to those obtained using thin airfoil theory. (Author)

Descriptors :   (*TWO DIMENSIONAL FLOW, PRESSURE), (*PRESSURE, MEASUREMENT), WIND TUNNEL MODELS, TRANSDUCERS, AIRFOILS, OSCILLATION, MATHEMATICAL MODELS, THEORY, MODEL TESTS, CALIBRATION, THESES.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE