Treatment of friction-driven flow of porous medium

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F10%3A00503976" target="_blank" >RIV/49777513:23520/10:00503976 - 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
Treatment of friction-driven flow of porous medium
Original language description
To model the process of oil expression from plant seeds in a screw-press machine several physical phenomena have to be taken into account like large deformation of porous matrix saturated by fluid (the oil) and the friction between the perforated statorpart and the rotating medium, as well as between the rotor and the medium. The friction is in fact the main force propelling the medium and as such it deserves proper treatment. The large deformation is resolved by a sequence of Biot-like subproblems forsmall displacement increments of the skeleton matrix and the fluid pressure, involving interpolation of the convected quantities (stress) to a fixed reference domain, where the FE integration occurs in the Lagrangian sense. The friction is described bya variational inequality making the time increment problem non-smooth that we solve using the semi-smooth Newton method.
Czech name
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Czech description
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Project
<a href="/en/project/FR-TI1%2F369" target="_blank" >FR-TI1/369: *Research and development of screw press extruding-expelling process</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

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

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