2026-09-19T13:32:44Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1118992022-01-13T07:54:05Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Kenneth Kamrin.
Zhang, Qiong, S.M. Massachusetts Institute of Technology
Massachusetts Institute of Technology. Department of Mechanical Engineering.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2017-10-18T15:09:10Z
2017-10-18T15:09:10Z
2017
2017
http://hdl.handle.net/1721.1/111899
1005081802
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 89-93).
A recent granular rheology based on an implicit 'granular fluidity' field has been shown to quantitatively predict many nonlocal phenomena. However, the physical nature of the field has not been identified. Here, the granular fluidity is found to be a kinematic variable given by the velocity fluctuation and packing fraction. This is verified with many discrete element simulations, which show the operational fluidity definition, solutions of the fluidity model, and the proposed microscopic formula all agree. Kinetic theoretical and Eyring-like explanations shed insight into the obtained form.
by Qiong Zhang.
S.M.
93 pages
eng
Massachusetts Institute of Technology
MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.
http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering.
Microscopic description of the granular fluidity field in nonlocal flow modeling
Thesis
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