Section 13

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Experiments on baroclinic instabilities

  1. Th. von Larcher*,
  2. W. Beyer,
  3. C. Egbers

Article first published online: 13 DEC 2004

DOI: 10.1002/pamm.200410233

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PAMM

PAMM

Volume 4, Issue 1, pages 504–505, December 2004

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How to Cite

von Larcher, Th., Beyer, W. and Egbers, C. (2004), Experiments on baroclinic instabilities. Proc. Appl. Math. Mech., 4: 504–505. doi: 10.1002/pamm.200410233

Author Information

  1. Dept. of Aerodynamics and Fluid Mechanics, Brandenburg University of Technology Cottbus, 03013 Cottbus, Germany

*Phone: ++49 355 69 4874, Fax: ++49 355 69 4891

Publication History

  1. Issue published online: 13 DEC 2004
  2. Article first published online: 13 DEC 2004

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Abstract

We study experiments on baroclinic instabilities in a different heated rotating annulus cooled from within. Characteristic time series of the flow velocity are measured with the Laser–Doppler–Velocimetry (LDV) technique. The surface flow is observed with a co–rotating camera. Steady waves as well as complex flow states are observed. Hysteresis is also found. The drift rate of stable baroclinic waves is determined. The methods of non–linear time series analysis are used to investigate the dynamics of baroclinic waves, particulary in transition zones between different flow regimes. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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