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RESEARCH PAPERS

A Four Hole Pressure Probe for Fluid Flow Measurements in Three Dimensions

[+] Author and Article Information
I. C. Shepherd

Division of Mechanical Engineering, Commonwealth Scientific and Industrial Research Organization, Highett, Victoria, Australia

J. Fluids Eng 103(4), 590-594 (Dec 01, 1981) (5 pages) doi:10.1115/1.3241774 History: Received December 31, 1979; Online October 26, 2009

Abstract

A pressure probe which facilitates measurement of mean flow quantities in three dimensions simultaneously is described. Its main feature is a tip shaped like the frustrum of a pyramid, with three-side holes equispaced around a central hole. Flow quantities are related to the hole pressures by calibration, so that the tedious procedure of nulling or pressure balancing can be avoided. The advantages of this configuration over five-hole probes are that a simpler probe with a smaller head results, fewer pressures need to be recorded and because no redundant information is collected, determination of the dependent flow quantities is simpler and unambiguous.

Copyright © 1981 by ASME
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