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City University of New York (CUNY)
Dissertations, Theses, and Capstone Projects
Bulk metallic glass; Granular; Soft matter; Statistical physics
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Order And Asymmetry In Jammed Systems, Zhusong Li
Order And Asymmetry In Jammed Systems, Zhusong Li
Dissertations, Theses, and Capstone Projects
Granular matter is composed of particles that are big enough that thermal effects may be neglected. We studied both granular flow and granular statics using numerical simulation. In granular flow, we simulated 2D granular flow in a hopper. A hopper is a container with an opening at the bottom. Simulated disks are placed in the hopper with the bottom closed and then released. We developed a new tangential force model to simulate hopper flow, that matches experiments and shows that the output flux is proportional to the bottom opening size to the 3/2 power. We also see clogging or jamming …