prikaz prve stranice dokumenta Aerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu
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master's thesis
Aerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu
Zagreb: University of Zagreb, Faculty of Transport and Traffic Sciences, 2022. urn:nbn:hr:119:048982
Cvek Šekuljica, Ian
University of Zagreb
Faculty of Transport and Traffic Sciences
Division of Aeronautics
Department of Aeronautics

Institutional repository: Faculty of Transport and Traffic Sciences

Cite this document

Cvek Šekuljica, I. (2022). Aerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu (Master's thesis). Zagreb: University of Zagreb, Faculty of Transport and Traffic Sciences. Retrieved from https://urn.nsk.hr/urn:nbn:hr:119:048982

Cvek Šekuljica, Ian. "Aerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu." Master's thesis, University of Zagreb, Faculty of Transport and Traffic Sciences, 2022. https://urn.nsk.hr/urn:nbn:hr:119:048982

Cvek Šekuljica, Ian. "Aerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu." Master's thesis, University of Zagreb, Faculty of Transport and Traffic Sciences, 2022. https://urn.nsk.hr/urn:nbn:hr:119:048982

Cvek Šekuljica, I. (2022). 'Aerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu', Master's thesis, University of Zagreb, Faculty of Transport and Traffic Sciences, accessed 19 January 2025, https://urn.nsk.hr/urn:nbn:hr:119:048982

Cvek Šekuljica I. Aerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu [Master's thesis]. Zagreb: University of Zagreb, Faculty of Transport and Traffic Sciences; 2022 [cited 2025 January 19] Available at: https://urn.nsk.hr/urn:nbn:hr:119:048982

I. Cvek Šekuljica, "Aerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu", Master's thesis, University of Zagreb, Faculty of Transport and Traffic Sciences, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:119:048982

Metadata
TitleAerodinamičke karakteristike strujanja plina kroz nadzvučnu mlaznicu
Title (english)Aerodynamic Characteristics of Gas Flow Through a Supersonic Nozzle
AuthorIan Cvek Šekuljica
MentorKarolina Krajček Nikolić (mentor)
Committee memberAnita Domitrović (predsjednik povjerenstva)
Committee memberDavor Franjković (član povjerenstva)
Committee memberErnest Bazijanac (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Transport and Traffic Sciences
(Division of Aeronautics)
(Department of Aeronautics)
Zagreb
Defense date and country2022-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Traffic and Transport Technology
Air Traffic
Abstract
Za ubrzanje struje fluida sa podzvučne na nadzvučnu brzinu koristi se konvergentno-divergentna mlaznica. Takve vrste mlaznica prisutne su u raketnim motorima ili motorima nadzvučnih vojnih mlaznih zrakoplova. Definirano je i opisano kvazi-jednodimenzionalno strujanje koje je prigodno za razmatranje karakteristika strujanja kroz nadzvučnu mlaznicu i nadzvučne difuzore. Nakon definiranja osnova strujanja fluida kroz nadzvučnu mlaznicu i difuzor, definiran je model nadzvučne mlaznice korišten pri CFD analizi aerodinamičkih karakteristika strujanja plina. Dizajn nadzvučne mlaznice opisan je metodom karakteristika. Također, metoda karakteristika je opisana ukratko kao odličan alat pri izračunu kontura zidova nadzvučne mlaznice. Mlaznica koja je dizajnirana i korištena u radu spada pod vrstu mlaznica minimalnih duljina. Za kraj prikazani su rezultati CFD analiza strujanja u slučaju viskoznog i neviskoznog strujanja. Pojava graničnog sloja se lijepo vidi pri viskoznom strujanju, te porast temperature u blizini zidova mlaznica uslijed pojave trenja. Prikazan je i slučaj pojave normalnog udarnog vala unutar mlaznice. Rezultati su validirani pomoću metode karakteristika.
Abstract (english)
A convergent-divergent nozzle is used to accelerate the fluid flow from subsonic to supersonic speeds. Such types of nozzles are present in rocket engines or supersonic military jet aircraft. A quasi-one-dimensional flow is defined and described, which is convenient for considering the characteristics of flow through a supersonic nozzle and supersonic diffusers. After defining the basis of the fluid flow through the supersonic nozzle and the diffuser, the model of the supersonic nozzle used in the CFD analysis of the aerodynamic characteristics of the gas flow was defined. The design of the supersonic nozzle is described by the method of characteristics. Also, the method of characteristics is briefly described as an excellent tool for calculating the contours of supersonic nozzle walls. The nozzle that was designed and used in the work belongs to the category of minimum length nozzles. Finally, the results of the CFD flow analysis in the case of viscous and non-viscous flow are presented. The appearance of the boundary layer is visible during viscous flow, and the increase in temperature near the walls of the nozzles due to the appearance of friction.. Results are validated by the method of characteristics.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:119:048982
Study programmeTitle: Aeronautics
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka aeronautike (magistar/magistra inženjer/inženjerka aeronautike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2022-12-09 15:23:36