Please use this identifier to cite or link to this item: http://dspace.ucuenca.edu.ec/handle/123456789/22176
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dc.contributor.authorAlvarado Martinez, Andrés Omar
dc.date.accessioned2018-01-11T21:21:52Z-
dc.date.available2018-01-11T21:21:52Z-
dc.date.issued2012-02-01
dc.identifier.issn431354
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84355166415&doi=10.1016%2fj.watres.2011.11.038&partnerID=40&md5=3cf7b7f71cf9dd03cacbd788ba27edb2
dc.identifier.urihttp://dspace.ucuenca.edu.ec/handle/123456789/22176-
dc.description.abstractThe advancement of experimental and computational resources has facilitated the use of computational fluid dynamics (CFD) models as a predictive tool for mixing behaviour in full-scale waste stabilization pond systems. However, in view of combining hydraulic behaviour with a biokinetic process model, the computational load is still too high for practical use. This contribution presents a method that uses a validated CFD model with tracer experiments as a platform for the development of a simpler compartmental model (CM) to describe the hydraulics in a full-scale maturation pond (7 ha) of a waste stabilization ponds complex in Cuenca (Ecuador). 3D CFD models were validated with experimental data from pulse tracer experiments, showing a sufficient agreement. Based on the CFD model results, a number of compartments were selected considering the turbulence characteristics of the flow, the residence time distribution (RTD) curves and the dominant velocity component at different pond locations. The arrangement of compartments based on the introduction of recirculation flow rate between adjacent compartments, which in turn is dependent on the turbulence diffusion coefficient, is illustrated. Simulated RTD's from a systemic tanks-in-series (TIS) model and the developed CM were compared. The TIS was unable to capture the measured RTD, whereas the CM predicted convincingly the peaks and lags of the tracer experiment using only a minimal fraction of the computational demand of the CFD model. Finally, a biokinetic model was coupled to both approaches demonstrating the impact an insufficient hydraulic model can have on the outcome of a modelling exercise. TIS and CM showed drastic differences in the output loads implying that the CM approach is to be used when modelling the biological performance of the full-scale system. © 2011 Elsevier Ltd.
dc.language.isoen_US
dc.sourceWater Research
dc.subjectCompartmental model
dc.subjectComputation fluid dynamics (CFD)
dc.subjectHydrodynamics
dc.subjectMixing
dc.subjectModelling
dc.subjectTracer study
dc.subjectWaste stabilization ponds (WSP)
dc.titleA compartmental model to describe hydraulics in a full-scale waste stabilization pond
dc.typeArticle
dc.ucuenca.idautor0102246477
dc.identifier.doi10.1016/j.watres.2011.11.038
dc.ucuenca.embargoend2022-01-01 0:00
dc.ucuenca.afiliacionalvarado, a., diuc-direccion de investigacion, universidad de cuenca, av. 12 de abril s/n, cuenca, ecuador, biomath, department of mathematical modelling statistics and bioinformatics, ghent university, coupure links 653, b-9000 gent, belgium
dc.ucuenca.correspondenciaAlvarado, A.; DIUC-Direccion de Investigacion, Universidad de Cuenca, Av. 12 de Abril s/n, Cuenca, Ecuador; email: andres.alvarado@ucuenca.edu.ec
dc.ucuenca.volumen46
dc.ucuenca.indicebibliograficoSCOPUS
dc.ucuenca.factorimpacto2.966
dc.ucuenca.cuartilQ1
dc.ucuenca.numerocitaciones19
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