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undergraduate thesis
Reducirani numerički model strujanja kroz cijevnu turbinu
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2021. urn:nbn:hr:235:299126
Pavletić, Leo
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

Pavletić, L. (2021). Reducirani numerički model strujanja kroz cijevnu turbinu (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:299126

Pavletić, Leo. "Reducirani numerički model strujanja kroz cijevnu turbinu." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2021. https://urn.nsk.hr/urn:nbn:hr:235:299126

Pavletić, Leo. "Reducirani numerički model strujanja kroz cijevnu turbinu." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2021. https://urn.nsk.hr/urn:nbn:hr:235:299126

Pavletić, L. (2021). 'Reducirani numerički model strujanja kroz cijevnu turbinu', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 11 July 2024, https://urn.nsk.hr/urn:nbn:hr:235:299126

Pavletić L. Reducirani numerički model strujanja kroz cijevnu turbinu [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2021 [cited 2024 July 11] Available at: https://urn.nsk.hr/urn:nbn:hr:235:299126

L. Pavletić, "Reducirani numerički model strujanja kroz cijevnu turbinu", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:235:299126

Metadata
TitleReducirani numerički model strujanja kroz cijevnu turbinu
Title (english)Reducted-order numerical model of flow through bulb turbine
AuthorLeo Pavletić
MentorŽeljko Tuković (mentor)
Committee memberVladimir Soldo (predsjednik povjerenstva)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2021-02-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
U ovom radu su prikazane različite vrste hidrauličkih turbina u postrojenjima za proizvodnju električne energije. Analiziraju se njihove glavne karakteristike da bi se razumijelo u kojem području raspoloživih vodenih padova i protoka se mogu efikasno koristiti. Također se razmatraju cijevne turbine za postrojenja koja koriste energiju plime i oseke te turbine-pumpe za postrojenja koja skladište energiju. Prikazano je kako odabrati osnovne veličine cijevne turbine uz pomoć osnovnih projektnih parametara. Proračunavaju se komponente brzina na ulazu u rotor, izlazu iz rotora, izlazu iz statora te kutove relativne brzine β_2 i β_3 . Prikazan je i proračun pada tlaka kroz rotorske lopatice. Zadatak ovog rada bio je izraditi parametarski geometrijski model protočnog dijela cijevne turbine. Pomoću m4 kompjuterskog jezika prikazana je parametrizacija geometrijskog modela cijevne turbine unutar koje se promjenom vanjskog promjera rotora mijenja cijeloukupna geometrija cijevne turbine. Numerički proračuni cijevne turbine izvršeni su u programskom paketu OpenFOAM. Korišten je model nestlačivog stacionarnog turbulentnog strujanja te je turbulencija modelirana pomocu k-ω SST modela turbulencije. U rezultatima simulacije cijevne turbine prikazano je polje brzine te padovi tlaka kroz turbinu.
Abstract (english)
This thesis presents different types of hydraulic turbines for electric power plants. Their main characteristics are analyzed to understand in which range of head and flow rate they can be used efficiently. Bulb turbines for tidal energy plants and reversible pump-turbines for pumped storage plants are also considered. The task of this thesis was to show how to choose general dimensions of bulb turbine by knowing basic design parameters. Also, velocity components at the rotor inlet, rotor outlet, stator outlet and relative velocity angles (β_2 and β_3) are calculated. The calculation of the pressure drop through the rotor blades is also shown. Numerically parameterized model is made using the m4 computer language. The parameterization of the geometric model is shown, within which the overall geometry of the bulb turbine changes by replacing the value of the rotors outer diameter. The numerical calculations for bulb turbine were made in the OpenFOAM software package. Incompressible steady-state turbulent flow model was used, and turbulence was modeled using a k - ωSST turbulence model. The analysis of the result shows velocity eld and pressure drop eld trough turbine.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:299126
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2021-02-26 14:26:51