Numerička analiza strujanja fluida i prijelaza topline u ispušnom kućištu plinske turbine

master's thesis

• Title (english): Numerical analysis of fluid flow and heat transfer in the gas turbine exhaust housing
• Author: Nikola Vranjić
• Mentor: Željko Tuković (mentor)
• Mentor: Zvonimir Guzović (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2015-01-23, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

U ovom se radu razmatra utjecaj hlađenja stijenke linera ispušnog kućišta plinske turbine na temperaturna naprezanja. Na početku rada se daje matematički model, a zatim metodom kontrolnih volumena diskretizirane jednadžbe svedene na sustav algebarskih jednadžbi. Drugi dio opisuje izradu mreže, postavljanje numeričkog modela koji će se rješavati, daju se svojstva materijala te početni i rubni uvjeti potrebni za rješavanje diskretiziranog matematičkog modela. Nakon numeričke simulacije za koju je korišten programski paket OpenFOAM, daje se analiza rezultata i zaključci te lista potencijalnih rješenja problema temperaturnog naprezanja.

Abstract (english)

This thesis deals with gas turbine exhaust housing liner and liner cooling induced thermal stresses. In the first parts of this thesis, mathematical model and its corresponding finite volume discretization are given in the form of system of algebraic equations. Second part is all about the process of setting the case up, including mesh generation, material properties and initial and boundry conditions. OpenFOAM is used for numerical simulation, after which results and their analysis are given. Based on conclusions coming from results, some potential solutions are provided with their possible pros and cons.

• Keywords: računalna mehanika fluida; računalna mehanika kontinuuma; temperaturna naprezanja; liner ispušnog kućišta plinske turbine
• Keywords (english): computational fluid dynamics (CFD); computational continuum mechanics; thermal stress; gas turbine exhaust housing liner
• Language: croatian
• URN:NBN: urn:nbn:hr:235:779059
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 12:33:37