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 Poincaré 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 language | English (US) |
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Title of host publication | 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 |
Publisher | TSFP-9 |
Volume | 2 |
ISBN (Electronic) | 9780000000002 |
State | Published - Jan 1 2015 |
Event | 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 - Melbourne, Australia Duration: Jun 30 2015 → Jul 3 2015 |
Other
Other | 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 |
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Country/Territory | Australia |
City | Melbourne |
Period | 6/30/15 → 7/3/15 |
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes