COMPUTATIONAL METHODS IN ENGINEERING AND SCIENCE
EPMESC X, Aug. 21-23, 2006, Sanya, Hainan,China
©2006 Tsinghua University Press & Springer
Motion Analysis of the Elevating Ball by the Effect of Buoyant Force
Y. Matsuo *, Y. Nakabayashi
Department of Computational Science and Engineering, Toyo University, 2100 Kujirai, Kawagoe, 3508585
Japan
Email: [email protected]
Abstract
The multidisciplinary analysis of incompressible fluid flow and rigid body motion is performed to
investigate the behavior of the ball elevating by the effect of buoyant force. In the two dimensional analysis,
the ball vibrates periodically by the effect of swing force generated by Karman vortex street behind the ball.
Our final target is to investigate the reason the ball does not jump perpendicularly when it comes on the
surface.
Figure 1: Mesh configurations of elevating ball
Figure 2: Velocity field around elevating ball (left: Re =100, right Re =10000)
REFERENCES
1. Adventure Project: http://adventure.q.t.u-tokyo.ac.jp/
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