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Experiments in Fluids

, Volume 41, Issue 3, pp 393–399 | Cite as

Experimental and numerical study of a spiral structure at the periphery of an aspirated rotor–stator cavity

  • David RémyEmail author
  • Daniel Buisine
Research Article

Abstract

The purpose of this paper is to study the range of existence, the process of transition and the phase velocity of the spiral structure in an aspirated rotor–stator cavity. Experience shows that for a given flow rate and rotation, a whole range of azimuthal wave numbers are possible. Some are highly stable while others on the fringes of this range are subject to multiple transitions that depend on the fluctuations of the flow. Numerical simulation offers the advantage of enabling control over the wave number and the disturbance of the flow. Both approaches enable us to better understand the dynamics of this instability.

Keywords

Reynolds Number Phase Velocity Spiral Structure Ekman Layer Axial Speed 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Laboratoire de Mécanique de Lille UMR CNRS 8107Université des Sciences et Technologies de LilleVilleneuve d’AscqFrance

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