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On the wake in the low-Reynolds-number flow behind an impulsively started circular cylinder

✍ Scribed by M. Bentwich; T. Miloh

Publisher
Springer
Year
1984
Tongue
English
Weight
297 KB
Volume
18
Category
Article
ISSN
0022-0833

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✦ Synopsis

This analysis completes the authors' singular perturbations type of solution of the title problem, when the cylinder acquires instantaneously a uniform velocity. As reported the solution consists of three expansions which represent the flow in three different space-time subdomains. It is shown here that there exists a fourth subdomain. An appropriate additional expansion is developed and matched with the other three. This latter expansion represents the flow late in the process in a wake region. This wake extends all the way downstream to infinity. Its width is comparable to the diameter of the obstacle.

πŸ“œ SIMILAR VOLUMES

The wake region in the steady low-Reynol
The wake region in the steady low-Reynolds-number flow past a cylinder
✍ M. Bentwich πŸ“‚ Article πŸ“… 1985 πŸ› Springer 🌐 English βš– 292 KB

Evidently the flow field defined in the title contains three rather than two discernable regimes. The first is the vicinity of the cylinder where the flow is viscosity dominated. The second is known as the outer field. There space variations are milder, viscosity is much less effective and the influ