On the Frictional Resistance of Enclosed Rotating Cones : 1st Report, Frictional Moment and Observation of Flow with a Smooth Surface

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概要

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• The effects of a cone vertex angle θ on the frictional moment of a rotating cone were investigated experimentally over a range of vertex angles from 30° to 270°, when the cone was rotated in a conical casing the vertex angle of which was equal to that of the rotor. In the case of 120°≦θ≦180°, the moment coefficient C_M was found to be almost independent of θ in any flow regime, but at θ≦90°, a fairly large difference of C_M due to θ was observed in the region where the spacing ratio s/r_0 was comparatively large and the Reynolds number was small. Visual study of flow was conducted at θ = 180° (disk) and θ = 60°. It was deduced that, in the case of θ = 90°, vortices similar to those of Taylor type occurred in the flow.

• 一般社団法人日本機械学会の論文

著者

• YAMADA Yutaka

  Nagoya Institute of Technology

• ITO Motoyuki

  Nagoya Institute of Technology

関連論文

• The Flow around a Rotating Cone in a Casing : For the Case When the Cone Vertex Angle is 60° : Series B : Fluid Engineering Heat Transfer Combustion, Power Thermophysical Properties
• Flow Between Eccentric Rotating Cylinders, Where the Clearance is Relatively Large
• On the Frictional Resistance of Enclosed Rotating Cones : 1st Report, Frictional Moment and Observation of Flow with a Smooth Surface
• On the Frictional Resistance of Enclosed Rotating Cones : 2nd Report, Effects of Surface Roughness

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