diplomsko delo
Jure Vobner (Author), Ignacijo Biluš (Mentor), Matej Zadravec (Co-mentor)

Abstract

Diplomsko delo s pomočjo računalniške dinamike tekočin (CFD) obravnava deviacije v obratovanju ladijskega vijaka, kot posledico nenatančnosti izdelave. Predstavljene so vse geometrijske lastnosti in njihov vpliv na obratovanje, kratko je povzet standard kateri zavzema kontrolo geometrije. Izvedena je analiza vpliva računske mreže na rezultate, pridobljena je najbolj optimalna vrsta te mreže na podlagi konvergence in primerjave rezultatov z empiričnimi izračuni. Postavljen je enak numerični eksperiment za vse tolerančne razrede. Vse skupaj se zaključi z povezavo numeričnih in realnih rezultatov preko porabe goriva. Na podlagi ugotovitve je ovrednotena natančnost numeričnega eksperimenta in tako podan zaključek.

Keywords

ladijski vijak;računalniška dinamika tekočin;zmogljivostne karakteristike;optimizacija;poraba goriva;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: [J. Vobner]
UDC: 519.6:629.5.035.5(043.2)
COBISS: 100762371 Link will open in a new window
Views: 259
Downloads: 37
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Other data

Secondary language: English
Secondary title: Impact of manufacturing tolerances on marine propeller performance
Secondary abstract: Work done in this paper covers preparations and construction of Computational Fluid Dynamics (CFD) analysis in need to observe the open water performance deviation as result of insufficient manufactured quality. Furthermore, we evaluate geometric influences on marine propeller performance regarding ISO 484 standard tolerance Classes. In addition, sizing effect of tetrahedral mesh is considered. With help of empirical calculations and convergence criterium we get sufficient mesh to work on. Considering all this, we define CFD experiment in equal definition for all tolerance Classes. At the end all obtained data is compared with real size experiment reference. Finally, connection between real and numerical experiment is made, for future anticipation in fuel consumption improvement.
Secondary keywords: marine propeller;CFD;open water performance;ISO 484;optimization;fuel efficiency;
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Mariboru, Fak. za strojništvo, Konstrukterstvo
Pages: XII, 43 str., [29] f. pril.
ID: 13252012
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