On the movement of small ball under the action of "Centrifugal Buoyancy"

LIU Jie1; PANG Guo-ying2; LIU Jun2; YU Qing-han1

doi:10.16854 /j.cnki.1000-0712.170205

College Physics >

2018 , Vol. 37 >Issue 2: 60 - 63

DOI: https://doi.org/10.16854 /j.cnki.1000-0712.170205

On the movement of small ball under the action of "Centrifugal Buoyancy"

LIU Jie1 ,
PANG Guo-ying2 ,
LIU Jun2 ,
YU Qing-han1

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1. Cadets Brigade，Military Transportation University ，Tianjin 300161，China; 2. General Courses Department，Military Transportation University ，Tianjin 300161，China

Received date: 2017-04-11

Revised date: 2017-06-24

Online published: 2018-02-20

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Abstract

The dynamic effect of the fluid in the constant rotation of the fluid is different from that of the stationary state. It is mainly embodied in the change of the pressure inside the liquid and the additional buoyancy，which can be called " centrifugal buoyancy" . We discuss V-shaped tube inertial centrifugal force demonstration instrument in the depth of the ball movement in-depth discussion，by solving the surface integral obtained by " centrifugal buoyancy" formula. Then we find the equation of motion and the phenomenon of quantitative analysis of the interpretation of the experiment.

Key words： non-inertial system; inertial centrifugal force; centrifugal buoyancy; damping motion

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LIU Jie1 , PANG Guo-ying2 , LIU Jun2 , YU Qing-han1 . On the movement of small ball under the action of "Centrifugal Buoyancy"[J]. College Physics, 2018 , 37(2) : 60 -63 . DOI: 10.16854 /j.cnki.1000-0712.170205

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