FLUCTUATING PRESSURE AND VELOCITY FIELDS IN THE NEAR FIELD OF A ROUND JET.

Paul Chang, Ronald J. Adrian, Barclay G. Jones

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations

Abstract

A new analysis algorithm for analyzing signals of a triple-wire anemometer probe is presented which describes the performance of the three effective colling velocities for a range of flow vector directions. Jorgensen's (1971) cooling law for cylinders inclined to the flow vector is adopted. Inverted velocity vectors are multiple, but a uniqueness domain is defined within which the vector coinciding with the true velocity vector can be singled out. Samples of linearized voltages were taken in the turbulent shear layer of a 6. 35 cm diameter jet and analyzed by the algorithm. The results support the methodology of the algorithm. The mechanisms that cause some of the samples to reside outside the realizability domain are discussed. A dynamic test in terms of pressure-velocity correlation in an unsteady irrotational flow was performed for the bleed-type pressure transducer.

Original languageEnglish (US)
Title of host publicationT.&A.M. Report (University of Illinois at Urbana - Champaign, Department of Theoretical and Applied Mechanics)
Edition475
StatePublished - Nov 1 1985
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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