PIV of a precessing cylinder flow at large tilt angles

Thomas Albrecht; Hugh Blackburn; Patrice Meunier; Richard Manasseh; Juan Lopez

PIV of a precessing cylinder flow at large tilt angles

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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)
Title of host publication	9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
Publisher	TSFP-9
ISBN (Electronic)	9780000000002
State	Published - 2015
Event	9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015 - Melbourne, Australia Duration: Jun 30 2015 → Jul 3 2015

Publication series

Name	9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
Volume	2

Other

Other	9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015
Country/Territory	Australia
City	Melbourne
Period	6/30/15 → 7/3/15

ASJC Scopus subject areas

Fluid Flow and Transfer Processes

Cite this

PIV of a precessing cylinder flow at large tilt angles. / Albrecht, Thomas; Blackburn, Hugh; Meunier, Patrice et al.
9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015. TSFP-9, 2015. (9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Albrecht, T, Blackburn, H, Meunier, P, Manasseh, R & Lopez, J 2015, PIV of a precessing cylinder flow at large tilt angles. in 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015. 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015, vol. 2, TSFP-9, 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015, Melbourne, Australia, 6/30/15.

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AU - Lopez, Juan

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

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M3 - Conference contribution

AN - SCOPUS:85034429235

T3 - 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015

BT - 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015

PB - TSFP-9

T2 - 9th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2015

Y2 - 30 June 2015 through 3 July 2015

ER -

PIV of a precessing cylinder flow at large tilt angles

Abstract

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