Spherical pressure probe for retrieving freestream pressure and directional data
Name
04232038.pdf
Size
1.37 MB
Format
Adobe PDF
Checksum (MD5)
ea5fd159fd75315cfaaecb6c2d0a7e3a
Author(s)
Figueiredo, William Arthur
Date Issued
1977
Publisher
Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine & Plasma Dynamics Laboratory, [1977]
Series/Report no.
GT & PDL report ; no. 137
Abstract
A spherical pressure probe designed to time resolve the total and static pressure and freestream radial and rotational flow angles in turbomachine flow fields was found to produce accurate results for flow angles over a range of 200 in both the radial and rotational directions. Reynolds number based on the probe sphere diameter had negligible effect over the range 14,000 to 92,000. There is a weak Mach number dependence, but the probe is usable up to a Mach number of 0.90. Calibration curves are plotted for M = 0.27, 0.7, and 0.9. These results were found by calibration in steady flow. From the probe dimensions and transducer response it is judged that the probe should have frequency response better than 30 kHz.
Description
August 1977
Includes bibliographical references (page 52)
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