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Effects of the concentration of solids on the phenomenon of super-elevation in artificial curved open channels

Gómez-Zambrano, Hernán Javier Y Córdoba, Gustavo (2018) Effects of the concentration of solids on the phenomenon of super-elevation in artificial curved open channels. Ingeniería y Competitividad, 20 (1). pp. 21-34.


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This present study analyses the effects of the concentration of solids in the over-elevation phenomenon in a canalwith a 180° curvature and a constant trapezoidal transversal section, with a firm bed, the fluid has a non-colloidal,mono-disperse distribution of relatively spherical particles of 1mm in size, thus making the rheology of the flow de-scribable by the Einstein-Roscoe equation (1). Two stages are proposed for the development of the research; the firstcorresponds to physical experimentation, achieved using an artificial canal, in which 420 tests were carried out usingdifferent concentration of solids and two slopes, in order to determine the behaviour of the bi-phased flow. All of thisis carried out by using experimental results and results obtained from numerical models. The data collected from theexperimental process is compared to the results obtained from the theoretical models that are reported in literature.An over-elevation equation was formulated from the analysis, which can be used for the bi-phased conditions de-scribed in this article. During the second phase, numerical modelling using the TITAN2F software was carried out,where laboratory conditions are replicated. Data found from numerical modelling is compared with experimentalresults, with the intention of validating the numerical model that TITAN2F uses. From what is mentioned above, itwas deduced that TITAN2F effectively reproduces the hydraulic phenomenon. However, it is also observed that theprogram has a low susceptibility to changes in the concentration of solids, due to the scale being used

Tipo de Elemento: Artículo
Palabras Clave: Curved open channels, Concentration of solids, Superelevation, Titan2F
Asunto: T Tecnología > TA Engineering (General). Civil engineering (General)
T Tecnología > TC Hydraulic engineering. Ocean engineering
T Tecnología > TD Environmental technology. Sanitary engineering
Division: Facultad de Ingeniería > Programa de Ingeniería Civil > Productividad
Depósito de Usuario: Ingeniero Hernán Javier/HJGZ Gómez-Zambrano
Fecha Deposito: 08 Mar 2018 14:40
Ultima Modificación: 14 Mar 2018 19:49

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