Stability investigations of a laminar wall jet using the complete Navier-Stokes equations

Persistent Link:
http://hdl.handle.net/10150/278052
Title:
Stability investigations of a laminar wall jet using the complete Navier-Stokes equations
Author:
Majer, Clemens Philipp, 1963-
Issue Date:
1991
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The hydrodynamic stability of a plane, two-dimensional, incompressible wall jet subjected to small disturbances is investigated by direct numerical integration of the complete Navier-Stokes equations. The numerical model allows growing or decaying of disturbances in the downstream direction as in physical experiments. In the past, various numerical investigations were published using the linear stability theory for the case of temporally growing disturbances. In this work, the investigations are made for the case of spatially growing disturbances. The neutral curves of the linear stability theory are displayed, and in addition, the downstream development of spatial growing disturbances is provided by using the complete Navier-Stokes equations. It is shown that the behavior of the disturbances is as predicted by the linear stability theory for a certain frequency using small disturbances. The changes in the downstream development of the flow subjected to large disturbances compared to the results using small disturbances is discussed. For large disturbance amplitudes, it was found that for the frequency of the disturbance waves used in the investigations the boundary layer mode clearly dominates the hydrodynamic stability.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Applied Mechanics.; Engineering, Aerospace.; Physics, Fluid and Plasma.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College
Degree Grantor:
University of Arizona
Advisor:
Fasel, Hermann F.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleStability investigations of a laminar wall jet using the complete Navier-Stokes equationsen_US
dc.creatorMajer, Clemens Philipp, 1963-en_US
dc.contributor.authorMajer, Clemens Philipp, 1963-en_US
dc.date.issued1991en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe hydrodynamic stability of a plane, two-dimensional, incompressible wall jet subjected to small disturbances is investigated by direct numerical integration of the complete Navier-Stokes equations. The numerical model allows growing or decaying of disturbances in the downstream direction as in physical experiments. In the past, various numerical investigations were published using the linear stability theory for the case of temporally growing disturbances. In this work, the investigations are made for the case of spatially growing disturbances. The neutral curves of the linear stability theory are displayed, and in addition, the downstream development of spatial growing disturbances is provided by using the complete Navier-Stokes equations. It is shown that the behavior of the disturbances is as predicted by the linear stability theory for a certain frequency using small disturbances. The changes in the downstream development of the flow subjected to large disturbances compared to the results using small disturbances is discussed. For large disturbance amplitudes, it was found that for the frequency of the disturbance waves used in the investigations the boundary layer mode clearly dominates the hydrodynamic stability.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectApplied Mechanics.en_US
dc.subjectEngineering, Aerospace.en_US
dc.subjectPhysics, Fluid and Plasma.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorFasel, Hermann F.en_US
dc.identifier.proquest1346723en_US
dc.identifier.bibrecord.b27253077en_US
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