Continuum Mechanical Modeling of Dry Granular Systems: From Dilute Flow to Solid-Like Behavior
- In this thesis, we develop a granular hydrodynamic model which covers the three principal regimes observed in granular systems, i.e. the dilute flow, the dense flow and the solid-like regime. We start from a kinetic model valid at low density and extend its validity to the granular solid-like behavior. Analytical and numerical results show that this model reproduces a lot of complex phenomena like for instance slow viscoplastic motion, critical states and the pressure dip in sand piles. Finally we formulate a 1D version of the full model and develop a numerical method to solve it. We present two numerical examples, a filling simulation and the flow on an inclined plane where the three regimes are included.
Author: | Clément Zemerli |
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URN: | urn:nbn:de:hbz:386-kluedo-36968 |
Advisor: | Arnulf Latz |
Document Type: | Doctoral Thesis |
Language of publication: | English |
Date of Publication (online): | 2013/01/28 |
Year of first Publication: | 2014 |
Publishing Institution: | Technische Universität Kaiserslautern |
Granting Institution: | Technische Universität Kaiserslautern |
Acceptance Date of the Thesis: | 2013/05/07 |
Date of the Publication (Server): | 2014/01/29 |
Page Number: | X, 158 |
Faculties / Organisational entities: | Kaiserslautern - Fachbereich Maschinenbau und Verfahrenstechnik |
DDC-Cassification: | 6 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau |
Licence (German): | Standard gemäß KLUEDO-Leitlinien vom 10.09.2012 |