PIV of a precessing cylinder flow at large tilt angles

Thomas Albrecht, Hugh Maurice Blackburn, Patrice Meunier, Richard Manasseh, Juan M Lopez

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Abstract

Planar particle image velocimetry measurements of the flow in a precessing cylinder are presented for nutation angles of up to 15◦. For a case of a moderate Reynolds number, we observe a rapid transition to a disordered state with a brief appearance of structures of high azimuthal wave numbers. Similarity to observations reported in previous experiments and numerical simulations at much lower tilt angle, but higher Poincar´e number suggests, a triadic resonance as the transition mechanism. Amplitudes of the forced mode and the mean streaming flow are extracted; their scaling with Reynolds number is found to agree reasonably well with weakly nonlinear theory.
Original languageEnglish
Title of host publicationNinth International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9)
EditorsStavros Tavoularis, Ivan Marusic
Place of PublicationMelbourne Australia
PublisherUniversity of Melbourne
Pages1-6
Number of pages6
Publication statusPublished - 2015
EventTurbulence and Shear Flow Phenomena 2015 - The University of Melbourne, Melbourne, Australia
Duration: 30 Jun 20153 Jul 2015
Conference number: 9th
http://tsfp9.org/
http://www.tsfp-conference.org/proceedings/proceedings-of-tsfp-9-2015-melbourne.html

Conference

ConferenceTurbulence and Shear Flow Phenomena 2015
Abbreviated titleTSFP-9
CountryAustralia
CityMelbourne
Period30/06/153/07/15
Internet address

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