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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/8948

Title: Experimental Determination Among Available Theories Describing the Drag Force Exerting on Steel Spheres and Cu and Al Cylinders Moving in a Viscous Fluid
Authors: Shan-Tarng Chen;Shu-Chin Wang
Contributors: 物理系
Keywords: Drag force;Fluid density;Steel spheres;Viscous fluid
Date: 2004-12
Issue Date: 2011-05-11T05:48:07Z
Publisher: Royal Swedish Academy of Sciences
Abstract: This experiment is mainly aimed to determine which one of various available formulas is the most satisfactory for describing the drag force experienced by a moving object of different shape, size and material in viscous fluid in a long cylindrical container. The interesting problem on drag coefficient Cd and drag function f(R/D, Re) for moving objects of finite-length cylinders are also investigated. We find that Oseen's formula is the best for steel spheres whereas the Happel and Brenner's cylinder formula is satisfactory for Cu and Al cylinders.
Relation: Physica Scripta, 70(6):349-353
Appears in Collections:[物理學系] 期刊論文

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