Numerical investigation of the vertical plunging force of a spherical intruder into a granular bed

Y. Xu, J.T. Padding, M.A. Hoef, van der, J.A.M. Kuipers

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Abstract

The plunging of a large sphere into a prefluidized granular bed with various constant velocities is investigated using a state-of-theart hybrid Discrete Particle and Immersed Boundary Method (DPIBM), with which both the gas-induced drag force and the contact force exerted on the intruder can be investigated separately. Our simulation method has been validated by comparison with the existing experimental results. Current simulation results show a concave-to-convex plunging force as a function of depth and in the concave region the force fits to a power-law with exponent around 1.3, which is in good agreement with existing experimental observations.
Original languageEnglish
Title of host publication10th International Conference on Computational Fluid Dynamics In the Oil & Gas, Metallurgical and Process Industries, 17-19 June 2014, Trondheim
Publication statusPublished - 2014
Event10th International Conference on Computational Fluid Dynamics (CFD) in the Oil & Gas, Metallurgical and Process Industries (CFD 2014)
- Trondheim, Norway
Duration: 17 Jun 201419 Jun 2014
Conference number: 10
http://www.sintef.no/cfd2014

Conference

Conference10th International Conference on Computational Fluid Dynamics (CFD) in the Oil & Gas, Metallurgical and Process Industries (CFD 2014)
Abbreviated titleCFD 2014
CountryNorway
CityTrondheim
Period17/06/1419/06/14
Internet address

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