Sedimentation velocity

Japanese: sedimentation velocity(英語表記)sedimentationvelocity
Sedimentation velocity

…This phenomenon is called free settling. The phenomenon in which larger particles sink faster than smaller particles of the same density is due to the difference in sedimentation velocity. If a particle is in a fluid and gravity, buoyancy, and the resistance force acting on the particle are balanced, the particle will sink at a constant speed in the fluid, and the speed v at this time is given by the following equation. …

*Some of the terminology that refers to "sedimentation velocity" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このような現象を自由沈降free settlingという。同じ密度の粒子間で,粒子径の大きいほうが小さい粒子より速く沈む現象は,沈降速度sedimentation velocityの差によるものである。いま粒子が流体中にあって,重力と浮力および粒子に働く抵抗力とがつり合った場合,粒子は流体中を一定速度で沈んでいくが,このときの速度vは次式で与えられる。…

※「sedimentation velocity」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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