Experimental Investigation of the Wall-Effect on a Cylindrical Obstacle Moving in a Viscous Fluid at Low Reynolds Numbers

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概要

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• The force and moment acting on a cylindrical obstacle moving in a viscous fluid bounded by two parallel plane walls are invesdgated experimentally at Reynolds numbers ranging from 1O^<-1> to 10^<-5>. The important points resulting from the experiments are that (1) the drag and the lift coefficients are exactly proportional to the reciprocal of the Reynolds number for a fixed wall distance; (2) the minimum drag is obtained when the obstacle is located halfway between the walls and the central line between the two walls; (3) the minimum lift is obtained when the obstacle is located on the central line between the two walls; (4) when δ (the distance of the obstacle from a wall) is small, a small cange in the incidence produces a large change in the movement of the center of pressure; (5) for a fixed incidence, the center of pressure moves forward first, then moves backward as δ is increased; (6) the streamline pattern is unaltered even if the direction of motion is reversed.

• 社団法人日本物理学会の論文
• 1964-06-05

著者

• Taneda Sadatoshi

  Kobe University Of Mercantile Marine

関連論文

• Downstream Development of the Wakes behind Cylinders
• Experimental Investigation of the Wake behind a Sphere at Low Reynolds Numbers
• Experimental Investigation of the Wall-Effect on a Cylindrical Obstacle Moving in a Viscous Fluid at Low Reynolds Numbers
• Experimental Studies of the Lift on Two Equal Circular Cylinders placed side by side in a Uniform Stream at Low Reynolds Numbers
• The Stability of Two-Dimensional Laminar Wakes at Low Reynolds Numbers
• Oscillation of the Wake behind a Flat Plate parallel to the Flow

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