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Št. zadetkov: 8
Cavitation erosion modelling on a radial divergent test section using RANS
Luka Kevorkijan, Luka Lešnik, Ignacijo Biluš
Izvirni znanstveni članek
Oznake: kavitacija;erozija;erozivna potencialna energija;numerične simulacije;cavitation;erosion;erosive potential energy;numerical simulation;
Cavitation is the phenomenon of fluid evaporation in hydraulic systems, which occurs due to a pressure drop below the value of the vapor pressure. For numerical modelling of this generally undesirable phenomenon, which is often associated with material damage (erosion), there are various mathematica ...
Leto: 2022 Vir: Digitalna knjižnica Univerze v Mariboru (DKUM)
Prediction of cavitation and particle erosion in a radial divergent test section
Luka Kevorkijan, Luka Lešnik, Ignacijo Biluš
Izvirni znanstveni članek
Oznake: cavitation;Particles ANSYS Fluent;erosion;CFD;modelling;DPM;
The 3D unsteady, cavitating, particle-laden flow through a radial divergent test section was simulated with the homogeneous mixture model and Discrete Phase Model (DPM) within the commercial CFD code ANSYS Fluent. For turbulence, a RANS approach was adopted with the Reboud’s correction of turbulent ...
Leto: 2022 Vir: Fakulteta za strojništvo (UM FS)
Določitev porazdelitve pretoka zraka na razdelilni plošči v granulatorju z lebdečim slojem z uporabo sklopljene numerične simulacije toka tekočine in delcev
Luka Kevorkijan, Matej Zadravec
Magistrsko delo
Oznake: razdelilna plošča;porazdelitev pretoka zraka;lebdeči sloj;granulator;magistrske naloge;
Cilj tega dela je bil ugotoviti porazdelitev pretoka zraka na razdelilni plošči laboratorijske naprave za granuliranje v lebdečem sloju. Želeli smo ugotoviti ali sprememba pretoka zraka na napravi vpliva na delež pretoka skozi posamezno območje razdelilne plošče, kjer smo območja razdelili glede na ...
Leto: 2020 Vir: Fakulteta za strojništvo (UM FS)
Numerična simulacija prenosa toplote pri toplotni obdelavi aluminjastih vzorcev
Luka Kevorkijan, Matjaž Ramšak, Matej Steinacher
Diplomsko delo
Oznake: numerična simulacija;prenos toplote;telo idealne toplotne prevodnosti;aluminij;raztopno žarjenje;gašenje;merjenje temperature;mehanske lastnosti;
Opravljena je numerična simulacija segrevanja in ohlajanja aluminijastih vzorcev med raztopnim žarjenjem in gašenjem. Simulacija je pripravljena z uporabo toplotne prehodnosti izračunane iz meritev temperature, kjer so vzorci obravnavani kot telesa idealne toplotne prevodnosti. Ugotovljeno je, da ta ...
Leto: 2018 Vir: Fakulteta za strojništvo (UM FS)
Experimental analysis of cavitation erosion in a particle-laden flow
Filip Jovanovski, Ignacijo Biluš, Daniel Zdolšek, Luka Kevorkijan
Diplomsko delo
Oznake: cavitation erosion;solid particles;abrasion;experiment;diplomske naloge;
Cavitation erosion is a problem that presents a challenge for the engineers in different industries, as it erodes the machinery which leads to lower efficiency and higher maintanance costs. An experimental investigation has been conducted to evaluate cavitation and cavitation erosion with and withou ...
Leto: 2023 Vir: Fakulteta za strojništvo (UM FS)
Cavitation erosion modelling – comparison of different driving pressure approaches
Luka Kevorkijan, Marko Pezdevšek, Ignacijo Biluš, Gorazd Hren
Izvirni znanstveni članek
Oznake: kavtiacija;erozijski potencial;vozni tlak;numerične simulacije;cavitation;erosion potentional;driving pressure;numerical simulations;
In this paper we compared different driving pressure approaches to calculate the cavitation potential energy from a source, which is transferred to a surface. The first approach used the reference pressure, the second approach used the pressure calculated at each timestep with no averaging, the thir ...
Leto: 2023 Vir: Fakulteta za strojništvo (UM FS)
Obtaining the synthetic fuels from waste plastic and their effect on cavitation formation in a common-rail diesel injector
Luka Kevorkijan, Amalia Palomar-Torres, Eloisa Torres Jiménez, Carmen Mata, Ignacijo Biluš, Luka Lešnik
Izvirni znanstveni članek
Oznake: plastični odpadki;sintetična goriva;pirolitična olja;skupni vod;kavitacija;erozija;časovno odvisna simulacija;plastic waste;synthetic fuels;pyrolytic oils;common-rail;cavitation;erosion;transient simulation;
The presented paper addresses two significant issues of the present time. In general, the studies of the effect of synthetic fuels on cavitation formation and cavitation erosion prediction in the nozzle tip of common-rail diesel injectors were addressed. The first problem is plastic waste, which can ...
Leto: 2023 Vir: Fakulteta za strojništvo (UM FS)
Development of an experimental dead-end microfiltration layout and process repeatability analysis
Gorazd Bombek, Luka Kevorkijan, Grega Hrovat, Drago Kuzman, Aleks Kapun, Jure Ravnik, Matjaž Hriberšek, Aleš Hribernik
Izvirni znanstveni članek
Oznake: filtracija;nihanje tlaka;ponovljivost;postopki;parametri;filtration;pressure oscillations;repeatability;processes;parameters;
Microfiltration is an important process in the pharmaceutical industry. Filter selection and validation is a time-consuming and expensive process. Quality by design approach is important for product safety. The article covers the instrumentalization and process control of a laboratory-scale dead-end ...
Leto: 2024 Vir: Fakulteta za strojništvo (UM FS)
Št. zadetkov: 8
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