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Title:Modeliranje ekscentričnih trkov v večfaznem toku
Authors:ID Štrakl, Mitja (Author)
ID Ravnik, Jure (Mentor) More about this mentor... New window
Files:.pdf MAG_Strakl_Mitja_2018.pdf (2,68 MB)
MD5: B7334D455E82E7DFBB94EC63B562A4A4
PID: 20.500.12556/dkum/d8a0792f-f407-487a-a829-1da52547a0ec
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:V magistrskem delu je opisan proces izdelave numeričnega modela detekcije in obravnave ekscentričnega trka za namen raziskovanja problematike iz področja interakcij delcev v večfaznih tokovih. Matematični model temelji na predpostavki o idealno togem trku, z zanemarljivim prispevkom trenja. Numerična formulacija je sestavljena iz diskretizacije geometrije trodimenzionalnih delcev, detekcije trka med delci z določanjem stopnje prekrivanja, transformacije vektorskih veličin v koordinatni sistem obravnave, numeričnega reševanja sistema enačb in aplikacije rezultatov na gibalno stanje. Zgrajeni model je bil preverjen skozi proces verifikacije z poznanimi analitičnimi primeri trkov delcev, ter skozi proces validacije s spremljanjem ohranitve energije skozi obravnavo gruče naključnih trkov. Glede na rezultate je v zaključnem sklepu model bil prepoznan kot primeren za obravnavo namenske problematike, z upoštevanjem omejitev, predstavljenih skozi vsebino te naloge.
Keywords:večfazni tok, ekscentrični trk, detekcija trka, numerični model
Place of publishing:Maribor
Publisher:[M. Štrakl]
Year of publishing:2018
PID:20.500.12556/DKUM-71394 New window
UDC:519.6:532.517(043.2)
COBISS.SI-ID:22183958 New window
NUK URN:URN:SI:UM:DK:7KVUP67O
Publication date in DKUM:11.09.2018
Views:1615
Downloads:260
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Licences

License:CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
Link:http://creativecommons.org/licenses/by-nc/4.0/
Description:A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.
Licensing start date:08.08.2018

Secondary language

Language:English
Title:Eccentric collision modelling in multiphase flow
Abstract:Scope of the presented thesis describes the development of a numerical model, for eccentric collision detection and processing, for research of particle interaction phenomena of multiphase flows. Mathematical model is based on the assumption of ideal, rigid impacts with negligible friction effects. Numerical formulation is composed of tridimensional geometry discretization, collision detection with particle overlap analysis, vector transformations into reference frames, numerical equation solving and application of resulting vectors to particle dynamics. Developed model has been tested through the process of verification with simplified analytical particle collision problems and trough the process of validation with energy conservation evaluation for a set of random impacts. Based on the results, it was concluded, that the model is appropriate for its intended use, within reasonable limits, defined trough the scope of this thesis.
Keywords:multiphase flows, eccentric impact, collision detection, numerical model


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