Listar por tema "Transient flow"

Mostrando ítems 1-9 de 9

    • 2D CFD Modeling of Rapid Water Filling with Air Valves Using OpenFOAM 

      Aguirre-Mendoza, Andres M.; Oyuela, Sebastián; Espinoza Román, Héctor Gabriel; Coronado-Hernández, Oscar E.; Fuertes Miquel, Vicente S.; Paternina-Verona, Duban A. (Cartagena de Indias, 2021-11-04)
      The rapid filling process in pressurized pipelines has been extensively studied using mathematical models. On the other hand, the application of computational fluid dynamics models has emerged during the last decade, which ...

    • Assessment of Steady and Unsteady Friction Models in the Draining Processes of Hydraulic Installations 

      Coronado Hernández, Óscar Enrique; Derpich, Ivan; Fuertes Miquel, Vicente S.; Coronado Hernández, Jairo Rafael; Gatica, Gustavo (Cartagena de Indias, 2021-07-08)
      The study of draining processes without admitting air has been conducted using only steady friction formulations in the implementation of governing equations. However, this hydraulic event involves transitions from laminar ...

    • Backflow air and pressure analysis in emptying a pipeline containing an entrapped air pocket 

      Besharat M.; Coronado Hernández, Óscar Enrique; Fuertes Miquel, Vicente S.; Viseu M.T.; Ramos H.M. (Taylor and Francis Ltd., 2018)
      The prediction of the pressure inside the air pocket in water pipelines has been the topic for a lot of research works. Several aspects in this field have been discussed, such as the filling and the emptying procedures. ...

    • Effect of a commercial air valve on the rapid filling of a single pipeline: A numerical and experimental analysis 

      Coronado Hernández, Óscar Enrique; Besharat M.; Fuertes Miquel, Vicente S.; Ramos H.M. (MDPI AG, 2019)
      The filling process in water pipelines produces pressure surges caused by the compression of air pockets. In this sense, air valves should be appropriately designed to expel sufficient air to avoid pipeline failure. Recent ...

    • Emptying operation of water supply networks 

      Coronado Hernández, Óscar Enrique; Fuertes Miquel, Vicente S.; Angulo-Hernández, F.N. (MDPI AG, 2017)
      Recently, emptying processes have been studied in experimental facilities in pipelines, but there is a lack regarding applications in actual pipelines, which permits establishing the risk of collapse because of sub-atmospheric ...

    • Hydraulic modeling during filling and emptying processes in pressurized pipelines: a literature review 

      Fuertes Miquel, Vicente S.; Coronado Hernández, Óscar Enrique; Mora-Meliá D.; Iglesias-Rey P.L. (Taylor and Francis Ltd., 2019)
      Filling and emptying processes are common maneuvers while operating, controlling and managing water pipeline systems. Currently, these operations are executed following recommendations from technical manuals and pipe ...

    • Rigid water column model for simulating the emptying process in a pipeline using pressurized air 

      Coronado Hernández, Óscar Enrique; Fuertes Miquel, Vicente S.; Iglesias-Rey P.L.; Martínez-Solano F.J. (American Society of Civil Engineers (ASCE), 2018)
      This paper presents a mathematical model for analyzing the emptying process in a pipeline using pressurized air. The rigid water column model (RWCM) is used to analyze the transient phenomena that occur during the emptying ...

    • Subatmospheric pressure in a water draining pipeline with an air pocket 

      Coronado Hernández, Óscar Enrique; Fuertes Miquel, Vicente S.; Besharat M.; Ramos H.M. (Taylor and Francis Ltd., 2018)
      An air pocket’s behaviour inside of a pipeline during transient conditions is of great importance due to its effect on the safety of the hydraulic system and the complexity of modeling its behaviour. The emptying process ...

    • Transient phenomena during the emptying process of a single pipe with water–air interaction 

      Fuertes Miquel, Vicente S.; Coronado Hernández, Óscar Enrique; Iglesias-Rey P.L.; Mora-Meliá D. (Taylor and Francis Ltd., 2019)
      Emptying pipelines can be critical in many water distribution networks because subatmospheric pressure troughs could cause considerable damage to the system due to the expansion of entrapped air. Researchers have given ...

      Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.