Unsteady Circulatory Flow about a Circular Cylinder with Suction or Injection

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概要

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• An exact solution of the Navier-Stokes equations is presented for an incompressi-ble circulatory flow about an infinite circular cylinder with uniform suction or injection. An asymptotic evaluation of the solution for large time shows that, startingfrom a typical initial state, the flow ultimately becomes irrotational for R 3 l ; for1< R< 2, the initial vorticity distribution remains unchanged in the final state of flow;but for R >2, the initial vorticity distribution changes with the circulation at infinityremaining constant: Here R = Va/ v, with V, a and v being the suction velocity, radiusof the cylinder and the kinematic viscosity, respectively. The torque on the cylinderhas been evaluated for both small and large times.

• 社団法人日本物理学会の論文
• 1986-02-15

著者

• Fukumoto Yasuhide

  Department Of Applied Physics Faculty Of Engineering Nagoya University

関連論文

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• Sound Attenuation in a One-Dimensional Periodic Inhomogeneous Medium
• On Integral Invariants for Vortex Motion under the Localized Induction Approximation
• N-Solitons on a Curved Vortex Filament
• N-Solitons on a Curved Vortex Filament with Axial Flow
• Slow Motion of a Small Sphere in a Viscous Fluid between Two Concentric Circular Cylinders
• Unsteady Circulatory Flow about a Circular Cylinder with Suction or Injection

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