Article (Scientific journals)
Application of the Rossiter model for predicting the frequency of vortex shedding and surface oscillations in rectangular shallow reservoirs
Mignot, Emmanuel; Dewals, Benjamin
2024In Journal of Hydraulic Engineering, 150 (6), p. 06024007
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Keywords :
Shallow reservoirs; oscillating jets; analytical model; Rossiter feedback loop formula
Abstract :
[en] Shallow reservoirs are ubiquitous in hydraulic engineering. Predicting the properties of the flow field in such reservoirs is instrumental to inform their design, operation, and maintenance. In previous research, oscillating jets were experimentally observed in rectangular shallow reservoirs, and we assess here the performance of a simple analytical model to predict the frequency of the dominating jet oscillation mode(s). The model couples the evaluation of the reservoir natural frequencies, with the Rossiter feedback loop formula. The analytical predictions are compared against experimental observations by reanalyzing an existing dataset. In many cases, the model predictions match the observations. Remaining discrepancies may result from experimental uncertainties, which could be reduced in future tailored laboratory tests, or from the dimensionless vortex celerity value used by the feedback loop model, which was not assessed experimentally.
Research Center/Unit :
UEE - Urban and Environmental Engineering - ULiège
Disciplines :
Civil engineering
Author, co-author :
Mignot, Emmanuel
Dewals, Benjamin  ;  Université de Liège - ULiège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering
Language :
English
Title :
Application of the Rossiter model for predicting the frequency of vortex shedding and surface oscillations in rectangular shallow reservoirs
Publication date :
2024
Journal title :
Journal of Hydraulic Engineering
ISSN :
0733-9429
Publisher :
American Society of Civil Engineers, United States - New York
Volume :
150
Issue :
6
Pages :
06024007
Peer reviewed :
Peer Reviewed verified by ORBi
Development Goals :
6. Clean water and sanitation
7. Affordable and clean energy
Available on ORBi :
since 11 June 2024

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