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master's thesis
Optimalna prilagodba računalnog modela strujanja zraka mjerenim podacima za eksperiment u zatvorenom zračnom tunelu
2020. urn:nbn:hr:190:057101
Alvir, Marta
University of Rijeka
Faculty of Engineering
Department of Fluid Mechanics and Computational Engineering
Section of Computational Engineering

Cite this document

Alvir, M. (2020). Optimalna prilagodba računalnog modela strujanja zraka mjerenim podacima za eksperiment u zatvorenom zračnom tunelu (Master's thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:057101

Alvir, Marta. "Optimalna prilagodba računalnog modela strujanja zraka mjerenim podacima za eksperiment u zatvorenom zračnom tunelu." Master's thesis, University of Rijeka, Faculty of Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:190:057101

Alvir, Marta. "Optimalna prilagodba računalnog modela strujanja zraka mjerenim podacima za eksperiment u zatvorenom zračnom tunelu." Master's thesis, University of Rijeka, Faculty of Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:190:057101

Alvir, M. (2020). 'Optimalna prilagodba računalnog modela strujanja zraka mjerenim podacima za eksperiment u zatvorenom zračnom tunelu', Master's thesis, University of Rijeka, Faculty of Engineering, accessed 25 April 2024, https://urn.nsk.hr/urn:nbn:hr:190:057101

Alvir M. Optimalna prilagodba računalnog modela strujanja zraka mjerenim podacima za eksperiment u zatvorenom zračnom tunelu [Master's thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2020 [cited 2024 April 25] Available at: https://urn.nsk.hr/urn:nbn:hr:190:057101

M. Alvir, "Optimalna prilagodba računalnog modela strujanja zraka mjerenim podacima za eksperiment u zatvorenom zračnom tunelu", Master's thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:190:057101

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Metadata
TitleOptimalna prilagodba računalnog modela strujanja zraka mjerenim podacima za eksperiment u zatvorenom zračnom tunelu
Title (english)Optimal fitting of a computational flow model to measured data for a closed wind tunnel experiment
AuthorMarta Alvir
MentorStefan Ivić (mentor)
Committee memberNeven Lovrin (predsjednik povjerenstva)
Committee memberOzren Bukovac (član povjerenstva)
Committee memberStefan Ivić (član povjerenstva)
Committee memberVladimir Glažar (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
(Department of Fluid Mechanics and Computational Engineering)
(Section of Computational Engineering)
Rijeka
Defense date and country2020-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Cilj ovog rada je izrada računalnog modela strujanja zraka u zatvorenom zračnom tunelu čiji su uvjeti strujanja što sličniji podatcima dobivenim mjerenjem. U uvodnom dijelu rada opisani su osnovni pojmovi iz mehanike fluida. Potom je objašnjena svrha i primjena zračnih tunela, te njihove podjele. Detaljnije je opisan svaki dio zračnog tunela i njegova svrha, te karakteristike zračnog tunela u kojem su obavljena mjerenja. Zatim je opisano mjerenje i prikazani su dobiveni rezultati. Nakon prikaza jednadžbi strujanja, definiran je način izrade stacionarne simulacije u OpenFOAMu i prikazani su rezultati. Opisana je prilagodba računalnog modela u OpenFOAMu, koristeći MADS metodu i NOMAD softver, definiran je optimizacijski problem i prikazano je više različitih provedenih optimizacija. Potom su prikazani rezultati najbolje simulacije za koju je dobivena najmanja prosječna razlika brzina u odnosu na mjerenja. Izvršena je usporedba rezultata najboljeg računalnog modela s simulacijom u Ansys Fluent za iste rubne uvijete, te OpenFOAM nestacionarnom simulacijom.
Abstract (english)
The aim of this paper is to develop a computational model of air flow in a closed wind tunnel whose flow conditions are as similar as possible to the data obtained by measurement. The introductory part of the paper describes the basic concepts of fluid mechanics. Then the purpose and application of wind tunnels and their classification are explained. Each part of the wind tunnel and its purpose are described in more detail, as well as the characteristics of the wind tunnel in which the measurements were performed. The measurement is then described, and the results obtained are presented. After displaying the flow equations, the method of making a stationary simulation in OpenFOAM is defined and the results are presented. The adaptation of the computational model in OpenFOAM is described, using the MADS method and NOMAD software, the optimization problem is defined, and several different optimizations are presented. Then the results of the best simulation for which the smallest average speed difference in relation to the measurements was obtained are presented. The results of the best computational model were compared with the simulation in Ansys Fluent for the same boundary conditions, and the OpenFOAM non-stationary simulation.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:057101
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 conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2021-08-27 09:44:43