Simulation of Brownian Motion Affected by Gaussian Force in Gravitational Field

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概要

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• On the basis of a mathematical model of two dimensional Brownian motion, the velocity correlation and its spectral density of the Brownian motion are calculated by using microcomputer to display the characteristic properties of unsteady behavior of Brownian particles affected by an external force yielded in a constant gravity. As a result, we show that the Brownian motion is effected by both the ratio of the Brownian particle mass to the mass of a molecule agitating thermally as surrounding media and the value of the standard deviation of Gaussian distribution as the external force disturbing the Brownian motion.

• 宇宙航空研究開発機構の論文

著者

• Okushima Hideki

  Department Of Applied Physics Faculty Of Engineering Miyazaki University

• ETORI Kanji

  Department of applied Physics, Faculty of Engineering, Miyazaki University

• HARAGUCHI Shojiro

  Hitachi Microcomputer Engineering Co.Ltd.

• ETORI Kanji

  Department of Applied Physics, Faculty of Engineering

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