Martin Volmajer (Author), Breda Kegl (Author)

Abstract

ǂV ǂprispevku je obravnavan proces vbrizgavanja goriva in karakteristike curka dizelskega motorja z uporabo programa računske dinamike tekočin FIRE. Natančnost rezultatov, dobljenih s tem programom, je v veliki meri odvisna od pravilno postavljenih začetnih pogojev. Določevanje nekaterih pogojev je precej zahtevno, saj jih lahko določimo le na temelju izkušenj ali zahtevanih meritev v laboratoriju. V tem prispevku so na podlagi številnih zgledov in primerjav z rezultati, dobljenimi z znanimi empiričnimi izrazi za srednji Sauterjev premer kapljic, podane smernice za postavljanje začetnih pogojev.

Keywords

curek;dizelski motorji;karakteristike;karakteristike curka;motorji dizelski;računska dinamika tekočin;simulacija;šobe za vbrizgavanje;vbrizgavanje goriva

Data

Language: Slovenian
Year of publishing:
Typology: 1.02 - Review Article
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: Association of Mechanical Engineers and Technicians of Slovenia et al.
UDC: 621.43.038:004.94
COBISS: 4998939 Link will open in a new window
ISSN: 0039-2480
Parent publication: Strojniški vestnik
Views: 812
Downloads: 18
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Other data

Secondary language: English
Secondary title: Diesel-spray analysis
Secondary abstract: ǂThe ǂfuel injection process and the characteristics of the diesel-fuel spray were simulated using a computational fluid dynamics program FIRE. Initial conditions greatly influenced the accuracy of te results and these conditions can generally only be determined by complicated laboratory measurements. Guidelines to determine more realistic initial conditions based on comparisons of different practical results and empirical expressions for Sauter's mean diameter of a droplet are given in the paper.
Secondary keywords: diesel engine;fuel injection nozzles;spray characteristics;computational fluid dynamics;motorji dizelski;šobe za vbrizgavanje;karakteristike curka;računska dinamika tekočin;
URN: URN:NBN:SI
Type (COBISS): Not categorized
Pages: str. 627-636
Volume: ǂLetn. ǂ47
Issue: ǂšt. ǂ10
Chronology: 2001
ID: 1747754