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undergraduate thesis
Utjecaj mjerila na faktor forme
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2019. urn:nbn:hr:235:192849
Štefok, Mislav
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

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Štefok, M. (2019). Utjecaj mjerila na faktor forme (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:192849

Štefok, Mislav. "Utjecaj mjerila na faktor forme." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2019. https://urn.nsk.hr/urn:nbn:hr:235:192849

Štefok, Mislav. "Utjecaj mjerila na faktor forme." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2019. https://urn.nsk.hr/urn:nbn:hr:235:192849

Štefok, M. (2019). 'Utjecaj mjerila na faktor forme', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 19 April 2024, https://urn.nsk.hr/urn:nbn:hr:235:192849

Štefok M. Utjecaj mjerila na faktor forme [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2019 [cited 2024 April 19] Available at: https://urn.nsk.hr/urn:nbn:hr:235:192849

M. Štefok, "Utjecaj mjerila na faktor forme", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:235:192849

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Metadata
TitleUtjecaj mjerila na faktor forme
Title (english)Scale effect on the form factor
AuthorMislav Štefok
MentorNastia Degiuli (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2019-03-01, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Shipbuilding
Hydromechanics of Floating and Maritime Structures
Abstract
U ovom radu istražen je utjecaj mjerila na faktor forme pomoću numeričkih simulacija viskoznog strujanja oko udvojenog modela broda DTC (Duisburg Test Case) u različitim mjerilima te broda u naravi. Numeričke simulacije su provedene unutar komercijalnog programskog paketa STAR-CCM+. Dan je pregled literature te matematički model, koji se temelji na Reynoldsovim osrednjenim Navier-Stokesovim (RANS) jednadžbama. Primijenjen je k−???? SST model turbulencije te je prikazan postupak verifikacije dobivenih rezultata. Provedena je validacija dobivenih vrijednosti koeficijenata otpora trenja i faktora forme te je dobiveno zadovoljavajuće slaganje rezultata. Pokazano je kako se povećanjem Reynoldsovog broja faktor forme povećava. Na temelju provedenih numeričkih simulacija može se zaključiti kako je računalnom dinamikom fluida moguće odrediti faktor forme uz zadovoljavajuću točnost.
Abstract (english)
In this study the scale effect on form factor is investigated utilizing numerical simulations of double body viscous flow around DTC (Duisburg Test Case) model in different scales and ship. Numerical simulations are performed within commercial software package STAR-CCM+. Literature review is given along with the mathematical model based on Reynolds Averaged Navier-Stokes (RANS) equations. k−???? SST turbulence model is applied and verification procedure is shown. The obtained frictional resistance coefficients and form factors are validated and satisfactory agreement has been achieved. It has been shown that form factor increases with an increase in Reynolds number. Based on the performed numerical simulations, it can be concluded that form factor can be reliably determined by means of Computational Fluid Dynamics.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:192849
Study programmeTitle: Naval Architecture
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka brodogradnje (sveučilišni prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka brodogradnje)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
RepositoryRepository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb
Created on2019-05-23 00:29:14

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