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Faculté des Sciences appliquées
Faculté des Sciences appliquées
MASTER THESIS
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Hydrodynamic instabilities in shallow reservoirs

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De Cuyper, Anaïs ULiège
Promotor(s) : Dewals, Benjamin ULiège ; Erpicum, Sébastien ULiège
Date of defense : 2015 • Permalink : http://hdl.handle.net/2268.2/2367
Details
Title : Hydrodynamic instabilities in shallow reservoirs
Author : De Cuyper, Anaïs ULiège
Date of defense  : 2015
Advisor(s) : Dewals, Benjamin ULiège
Erpicum, Sébastien ULiège
Committee's member(s) : Pirotton, Michel ULiège
Andrianne, Thomas ULiège
Language : English
Number of pages : 85
Discipline(s) : Engineering, computing & technology > Civil engineering
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en ingénieur civil des constructions, à finalité
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[fr] This Master's thesis is devoted to the study of ?ows in shallow reservoirs. The main
purpose is to enhance the knowledge of the di?erent ?ow regimes in order to improve the
prediction of deposits and thus the reservoir management. To do this, two points are covered
in this thesis: the in?uence of geometric parameters (length and width of the reservoir) on
main characteristics of meandering ?ows and the applicability of thermodynamic principles
to predict the ?ow regime in reservoirs. Concerning the ?rst point, three experiments were
performed in a shallow horizontal ?ume, the ?rst experiment being used to validate the
experimental protocol. For each experiment, the surface velocity ?elds were measured by
Large-Scale Particle Image Velocimetry (LSPIV) and the main characteristics of measured
meandering ?ows such as the characteristic lengths or the Strouhal number were obtained
using a Proper Orthogonal Decomposition (POD). Finally, it was shown that for a given
?ow regime, the characteristics of the ?ow do not depend on the geometry but only on
the shallowness of the reservoir. In the second part, two analytical models were developed
to model symmetric and asymmetric ?ows. Mass and momentum balance equations were
established and the power developed by the shear force was determined for each model and
compared. Based on this comparison, it was shown that the principle of maximum power
could be used to determine the ?ow regime in reservoirs.


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Author

  • De Cuyper, Anaïs ULiège Université de Liège - ULg >

Promotor(s)

Committee's member(s)

  • Pirotton, Michel ULiège Université de Liège - ULg > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
    ORBi View his publications on ORBi
  • Andrianne, Thomas ULiège Université de Liège - ULg > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale
    ORBi View his publications on ORBi
  • Total number of views 5
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