Rough Cylindrical Object Immersed in a Granular Stream of Hard Disks

Payman Jalali () and Pertti Sarkomaa
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Payman Jalali: Lappeenranta University of Technology, Department of Energy and Environmental Technology
Pertti Sarkomaa: Lappeenranta University of Technology, Department of Energy and Environmental Technology

A chapter in Traffic and Granular Flow ’07, 2009, pp 525-533 from Springer

Abstract: Summary We have investigated stresses on rough cylindrical objects confronted with a granular stream of inelastic hard disks. The roughness of cylindrical objects is created via covering their surfaces with hard disks of given size and material. We have employed event-driven simulations using restitution coefficients dependent of the impact velocity in a collision. We report the effect of material property (restitution coefficient) on development of granular shock wave around the object with corresponding stresses exerted on it. The role of the roughness of the object in resulting flow is also studied. Moreover, simulations are performed in two conditions with gravity and without it.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-77074-9_57

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DOI: 10.1007/978-3-540-77074-9_57

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