On the Slow Motion of a Sphere in a Viscous Fluid

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概要

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• The flow around a spinning sphere moving in a viscous fluid is considered, on the basis of the Navier-Stokes equations, using the method of matched asymptotic expansions for small values of the sphere are computed. It is found that, in addition to the drag force, the sphere experiences a force orthogonal to its direction of motion, and that the drag is increased in proportion to the square of the spin velocity. It is also shown that the retarding torque is so exerted that the axis of rotation with any initial direction eventually settles down to be perpendicular to the direction of motion.

• 社団法人日本物理学会の論文
• 1974-08-15

著者

• Takagi Hideaki

  Department Of Physics Faculty Of Science The University Of Tokyo

• Takagi Hideaki

  Department Of Physics Faculty Of Science Univesity Of Tokyo:(present Address) Ibm Japan

• TAKAGI Hideaki

  Department of International Conservation Studies for Cultural Properties, Kibi International University

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