Flow Induced by a Pair of Line Vortices Moving against a Circular Cylinder

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概要

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• A combined numerical and experimental analysis has been carried out for investigating the behavior of a pair of line vortices, mutually propelled to approach a circular cylinder. The flow is assumed to be two-dimensional in numerical simulations, and which condition is examined carefully in laboratory experiments. The Reynolds number Re= k/v based on the initial circulation K of the vortices and the kinematic viscosity v of the fluid ranges from 100 to 1500. Flow behaviors are identified and classified into three patterns with six types of characteristic trajectories associated with the primary and secondary vortices. Of particular interest are the phenomena of rebound and reversal, exhibited respectively by the primary vortices moving against the cylinder under different flow conditions. Stable pairs of line vortices are generated in laboratory experiments ; flow visualization shows excellent agreement with numerical results in the comparisons of several flow behaviors.

• 社団法人日本物理学会の論文
• 1995-05-15

著者

• Chang Chien-cheng

  Institute Of Applied Mechanics And Taida Institute Of Mathematical Sciences National Taiwan Universi

• Chang Chien-cheng

  Institute Of Applied Mechanics College Of Engineering National Taiwan University

• Chu Chin-chou

  Institute Of Applied Mechanics College Of Engineering National Taiwan University

• Liu Cheng-Chien

  Institute of Applied Mechanics, College of Engineering, National Taiwan University

• Chang Ching-Cheng

  Institute of Applied Mechanics, College of Engineering, National Taiwan University

• Lee Sih-Tsan

  Institute of Applied Mechanics, College of Engineering, National Taiwan University

• Lee Sih-tsan

  Institute Of Applied Mechanics College Of Engineering National Taiwan University

• Liu Cheng-chien

  Institute Of Applied Mechanics College Of Engineering National Taiwan University

関連論文

• Effective Mass Density of a Periodic Array of Acoustic Media by Homogenization Analysis
• Flow Induced by a Pair of Line Vortices Moving against a Circular Cylinder
• Aerodynamic Forces Associated with Vortices
• Monte Carlo Simulation of Optical Properties of Phosphor-Screened Ultraviolet Light in a White Light-Emitting Device
• Effective Mass Density of a Periodic Array of Acoustic Media by Homogenization Analysis

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