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Finding of parameters of helical symmetry for unsteady vortex flow based on phase-averaged PIV measurement data

Finding of parameters of helical symmetry for unsteady vortex flow based on phase-averaged PIV... Abstract The phase-averaged velocity distributions were applied for calculation of parameters of a precessing vortex core; these were the input data for calculation of precession frequency by a formula derived from the helical vortex theory. It was demonstrated that the calculated frequency is within 10% error from the frequency measured in experiments. These results confirm the theory validity, and this opens opportunities for analysis of mechanisms controlling the precessing vortex core and external factors. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Finding of parameters of helical symmetry for unsteady vortex flow based on phase-averaged PIV measurement data

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References (5)

Publisher
Springer Journals
Copyright
2015 Pleiades Publishing, Ltd.
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/S0869864315050133
Publisher site
See Article on Publisher Site

Abstract

Abstract The phase-averaged velocity distributions were applied for calculation of parameters of a precessing vortex core; these were the input data for calculation of precession frequency by a formula derived from the helical vortex theory. It was demonstrated that the calculated frequency is within 10% error from the frequency measured in experiments. These results confirm the theory validity, and this opens opportunities for analysis of mechanisms controlling the precessing vortex core and external factors.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Sep 1, 2015

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