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Title:Numerična simulacija toka goriva v vbrizgalni šobi
Authors:Šaše, Blaž (Author)
Kegl, Breda (Mentor) More about this mentor... New window
Lešnik, Luka (Co-mentor)
Files:.pdf UN_Sase_Blaz_2017.pdf (1,79 MB)
MD5: 34979872F6177C70D4DAD2AE90A581C1
 
Language:Slovenian
Work type:Bachelor thesis/paper (mb11)
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:Namen diplomske naloge je bil raziskati tokovne razmere znotraj izvrtine za vbrizg goriva oziroma v vbrizgalni šobi pri uporabi računskih mrež različnih gostot. Izbrati smo morali pravo mrežo, zato smo preračune naredili na redki, srednji in gosti mreži. Diskretizacijo smo naredili z Richardsonovo ekstrapolacijo. Za nadaljnjo analizo smo izbrali srednjo mrežo, ki je podala kompromis med časom izračuna ter kvaliteto izračuna. To mrežo smo nato uporabili za simulacijo pri dveh različnih tlakih. Rezultate obeh tlakov smo primerjali na dveh robnih pogojih, simetriji in izstopu ter prikazali pri štirih različnih časih, kateri so najlepše prikazali spremembo vpadne faze.
Keywords:dizel, kavitacija, programski paket FIRE, Richardsonova ekstrapolacija, vbrizgalne šobe
Year of publishing:2017
Publisher:[B. Šaše]
Source:Maribor
UDC:621.436.038(043.2)
COBISS_ID:21041686 New window
NUK URN:URN:SI:UM:DK:LK8ULDYZ
Views:837
Downloads:84
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FS
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Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.
Licensing start date:14.09.2017

Secondary language

Language:English
Title:Numerical simulation of fluid flow in the injection nozzle
Abstract:The purpose of the thesis was to investigate the current conditions inside the fuel injector nozzle when using computational networks of different densities. We had to choose the right network, so we made calculations on the rare, medium and hosted network. Discretization was done with Richardson's extrapolation. For further analysis, we selected a medium network that compromised during the calculation time and the quality of the calculation. This network was then used for simulation at two different pressures. The results of the two pressures were compared on two boundary conditions, symmetry and outlet, and were shown at four different times, which best illustrated the change of the incident phase.
Keywords:cavitation, diesel, software package FIRE, Richardon's extrapolation, injection nozzles


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