The secondary flow in a short aspect ratio circular lid driven cavity at small but finite Reynolds number

Details The secondary flow in a short aspect ratio circular lid driven cavity at small but finite Reynolds number The secondary flow in a short aspect ratio circular lid driven cavity at small but finite Reynolds number

2003-10-21

arxiv.org/abs/physics/0310100v1

Physics

Fluid Dynamics

18 pages, 20 figures, submitted to Physics of Fluids

Scientific paper

Regular perturbation solutions are obtained for the Stokes flow field, the first order effects of inertia on the flow field, and the primary and secondary pressure fields in the circular lid driven cavity. The physical mechanism that causes vortex breakdown exists at small Reynolds number; it is a stagnation of the secondary flow by an adverse pressure gradient. The discontinuity between the rotating lid and the stationary sidewall has negligible influence on the flow field provided that the inertial forcing of the secondary flow is not localized near the boundary discontinuity, and the Reynolds number is small.

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