prikaz prve stranice dokumenta Proračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize
  Download
PDF 3.02 MB
master's thesis
Proračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2024. urn:nbn:hr:235:369100
Semren, Marija
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

Cite this document

Semren, M. (2024). Proračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:369100

Semren, Marija. "Proračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2024. https://urn.nsk.hr/urn:nbn:hr:235:369100

Semren, Marija. "Proračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2024. https://urn.nsk.hr/urn:nbn:hr:235:369100

Semren, M. (2024). 'Proračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 25 December 2024, https://urn.nsk.hr/urn:nbn:hr:235:369100

Semren M. Proračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2024 [cited 2024 December 25] Available at: https://urn.nsk.hr/urn:nbn:hr:235:369100

M. Semren, "Proračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:235:369100

Metadata
TitleProračun aksijalnog ventilatora i određivanje radne karakteristike pomoću CFD analize
Title (english)Design of an axial fan and CFD analysis of the fan performance characteristic
AuthorMarija Semren
MentorŽeljko Tuković (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2024-01-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Process Energy Engineering
Abstract
Zadatak ovog diplomskog rada bio je konstruirati statorske i rotorske lopatice aksijalnog ventilatora te izraditi CAD model rešetke rotora i statora za CFD simulacije strujanja kroz ventilator. Oblikovanje profila rotorskih i statorskih lopatica aksijalnog ventilatora izvedeno je koristeći metodologiju temeljenu na numerički određenim aerodinamičkim karakteristikama, uz primjenu uvjeta slobodnog vrtloga. Oblik lopatica dobiven numeričkim proračunom uspoređen je s oblikom lopatica dobivenim analitičkim proračunom. Provedeno je šest simulacija računalne dinamike fluida s različitim protocima i konstantnom brzinom vrtnje rotora u računalnom programu OpenFOAM® te su na temelju simulacija određeni prorasti totalnog tlaka i promjene statičkog tlaka i brzine uzvodno i nizvodno od ventilatora. Usporedbom izračunate snage konstruiranog ventilatora s komercijalnim ventilatorom sličnih dimenzija, dobivena je učinkovitost. Dodatno, provedene su dvije dodatne simulacije izvedbi sa usmjeravajućim statorskim lopaticama ispred i iza rotora kako bi se mogla usporediti slika strujanja i usporediti učinkovitost izvedbi. Na temelju podataka dobivenih analizom rezultata numeričkih simulacija za različite protoke, izračunate su radne karakteristike te je konstruirana krivulja učinkovitosti ventilatora.
Abstract (english)
The task of this master's thesis was to construct the stator and rotor blades of an axial fan and to create a CAD model of the rotor and stator grid for CFD simulations of flow through the fan. The shaping of the profiles of the rotor and stator blades of the axial fan was carried out using a methodology based on numerically determined aerodynamic characteristics, with the application of free vortex conditions. The blade shapes obtained through numerical calculations were compared with those obtained through analytical calculations. Six computational fluid dynamics simulations were conducted with different flow rates and a constant rotor rotation speed using the OpenFOAM® software. Based on these simulations, the increases in total pressure and changes in static pressure and velocity upstream and downstream of the fan were determined. Efficiency was obtained by comparing the calculated power of the constructed fan with that of a commercially available fan of similar dimensions. Additionally, two extra simulations were performed with guiding stator blades in front of and behind the rotor to compare the flow patterns and assess the efficiency of these configurations. Based on the data obtained from the analysis of results of numerical simulations for various flow rates, the operating characteristics were calculated, and the efficiency curve of the fan was constructed.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:369100
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-01-18 17:32:06