An Experimental Study on Rotational Coriolis Force upon Single Particle in Vertical Spiral Duct

Abstract:

An experiment of a single particle movement in vertical spiral rectangular duct has investigated with the aim to study the rotational Coriolis force based on kinetic model of single granular. The results indicate that: the dominant forces upon the particle are the centrifugal force, rotational Coriolis force, effectual gravity and drag force. There is exponential relation between λ and ζ, where λ stand for the ratio of tangential velocity of particle and water velocity, ζ stand for the ratio of rotational the Coriolis force and the centrifugal force. The probability of rotational Coriolis force and centrifugal force in the same order of magnitude is three-quarter. Therefore, the rotational Coriolis force should not be ignored on force analysis of a particle in small-scale rotational flow.

• Periodical: Applied Mechanics and Materials (Volumes 138-139)
• Pages: 123-127
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.138-139.123
• Online since: November 2011
• Authors: Zhen Wei Mu, Zhi Yan Zhang
• Keywords: Centrifugal Force, Kinetic Model of Single Granular, Rotational Coriolis Force, Spiral Duct

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