Modeling flow porous medium with coulomb friction on walls of ducts

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F10%3A00504127" target="_blank" >RIV/49777513:23520/10:00504127 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Modeling flow porous medium with coulomb friction on walls of ducts
Original language description
The paper deals with development of a computational model describing oil expression from oil-containing seeds. The compression of material is the consequence of propelling kinematics and the friction forces acting on the surfaces of the rotor and statorof the screw compression machine. We consider a poroelastic biphasic material of the Biot type. Within one time increment step, the physical fields involved in the problem are analyzed using the Lagrangian configuration; in order to compute the next time-increment, this configuration is updated using the upwind numerical scheme. Such a treatment requires a projection of the data between two non-matching FE meshes. On the rotor/stator surfaces the compressed material is subject to the Coulomb friction conditions, which make each incremental subproblem strongly non-linear. For numerical solution of this problem we employ frictional multipliers and we use the semi-smooth Newton method. The model is implemented in our in-house developed cod
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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