20.500.12556/DKUM-53152 Siskov model toka nenewtonskih tekočin z metodo končnih prostornin The Sisko model for non-Newtonian fluid flow using the finite volume method Analizirali smo primernost metode končnih prostornin za izračun tokovnih razmer v nestisljivi viskozni nenewtonski tekočini ob uporabi Siskovega modela. Prav tako smo analizirali natančnost numeričnih rezultatov v odvisnosti od gostote mreže. Metodo smo testirali na primeru gnanega toka v kotanji in primeru toka v kanalu z nenadno zožitvijo. Numerično dobljene rezultate smo primerjali z vrednostmi iz literature. Za reološki model smo uporabili modelne parametre, dobljene na podlagi preskusa s cevnim viskozimetrom. We have analyzed the suitability of the finite-volume method for calculating incompressible, viscous, non-Newtonian fluid flow where the Sisko model was used. In addition, convergence criteria are presented and the convergence depending on the mesh size was analyzed. The method was tested for the driven-cavity case and flow in a channel with a sudden contraction. The numerical solution was compared with the results evailable in the open literature. For the rheological model, parameters obtained from an experiment with a capillary viscometer were used. non-newtonian fluids flow models control-volume methods rheological models true true false Association of Mechanical Engineers and Technicians of Slovenia et al. Slovenski jezik Angleški jezik Delo ni kategorizirano 2015-07-10 19:29:13 2015-07-10 19:29:13 2022-06-02 03:09:14 2019-07-11 08:02:55 2002 0 0 str. 687-695 št. 12 Letn. 48 2002 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.57:519.61/.64 762116 5761819 0039-2480 URN:SI:UM:DK:J6DZTBBW http://www.dlib.si/details/URN:NBN:SI:doc-QV19UPYB 1 https://dk.um.si/Dokument.php?lang=slv&id=77712 Fakulteta za strojništvo 0 0 0