粘性流体中での楕円球群の自由落下運動について(G05-7 気泡・粒子・液滴等(1),G05 流体工学部門一般講演)

概要

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The shape of particles in nature or in the actual industrial applications is often non-spherical. Therefore, it is necessary to extend the conventional theoretical technique for the motions of the spheres to the motions of the particles with non-spherical shape. In this paper, a new superposition method of Oseen's flow field is constructed using the Oseen's flow field around the spheroids. The numerical results obtained by using the revised superposition method under the assumption of Oseen's approximation are discussed with the experimental results for free-fall motions of two spheroids with the eccentricity between 0.6 and 2.0. When the distance between two spheroids is more then 2.0 times the equivalent diameter, the numerical results obtained by using the newly constructed superposition method agree well with the experimental results.
社団法人日本機械学会の論文
2004-09-04