<div class="csl-bib-body">
<div class="csl-entry">Gugler, J. (2018). <i>Linear stability of the flow in a rectangular cavity driven by oblique lid motion</i> [Diploma Thesis, Technische Universität Wien]. reposiTUm. https://doi.org/10.34726/hss.2018.62122</div>
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dc.identifier.uri
https://doi.org/10.34726/hss.2018.62122
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/2050
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dc.description
Abweichender Titel nach Übersetzung der Verfasserin/des Verfassers
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dc.description.abstract
This thesis is about a linear stability analysis for the lid driven cavity problem.The system of choice consists of a two dimensional rectangular box in x- and y-direction, extended to infinity in the 3rd dimension (z-axis). The top lidof the box is moving tangentially to itself with a constant velocity and an inclination angle with respect to the x-axis in the z-direction. In this thesisa Python program using the FEniCS library is written to simulate the flowand perform a stability analysis. The lid driven cavity is a benchmark systemdue to the simple rectangular geometry and therefore much theoretical workhas already been done, which allows to test the written code and assure thecorrectness of the results. A linear stability analysis is carried out and the criticalReynolds numbers are determined as functoins of the cross-sectional aspectration and the direction of lid motion. The energy budget of critical modes isanalyzed using the Reynolds-Orr equation. For some parameter combinations,new modes are found at lower Reynolds numbers than already published results.The correctness of the present results is verified by full 3-dimensionalflow simulations.
en
dc.language
English
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dc.language.iso
en
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dc.rights.uri
http://rightsstatements.org/vocab/InC/1.0/
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dc.subject
Behälterströmung
de
dc.subject
hydrodynamische Stabilität
de
dc.subject
cavity flow
en
dc.subject
hydrodynamic stability
en
dc.title
Linear stability of the flow in a rectangular cavity driven by oblique lid motion
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dc.title.alternative
Linear Stabilität der Strömung in einem schräg angetriebenen Rechteckbehälter
de
dc.type
Thesis
en
dc.type
Hochschulschrift
de
dc.rights.license
In Copyright
en
dc.rights.license
Urheberrechtsschutz
de
dc.identifier.doi
10.34726/hss.2018.62122
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dc.contributor.affiliation
TU Wien, Österreich
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dc.rights.holder
Johannes Gugler
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dc.publisher.place
Wien
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tuw.version
vor
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tuw.thesisinformation
Technische Universität Wien
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dc.contributor.assistant
Des Boscs, Pierre-Emmanuel
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tuw.publication.orgunit
E322 - Institut für Strömungsmechanik und Wärmeübertragung