Aguirre-Mendoza, Andrés M.; Oyuela, Sebastián; Espinoza-Román, Héctor G.; Coronado-Hernández, Oscar E.; Fuertes-Miquel, Vicente S.; Paternina-Verona, Duban A.(MDPI AG, 2021-11)
[EN] 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, ...
Coronado-Hernández, Oscar E.; Bonilla-Correa, Dalia M.; Lovo, Aldo; Fuertes-Miquel, Vicente S.; Gatica, Gustavo; Linfati, Rodrigo; Coronado-Hernández, Jairo R.(MDPI AG, 2022-11)
[EN] Emptying processes are typical maneuvers that should be performed by water distribution companies for operation purposes. These processes involve a complex numerical analysis, since a set of algebraic and ordinary ...
[EN] During the filling process in pressurized hydraulic systems, sudden pressure changes generated inside the pipes can cause significant damage. To avoid these excessive overpressures, air valves should be installed to ...
[EN] Studying sub-atmospheric pressure patterns in emptying pipeline systems is crucial because these processes could cause collapses depending on the installation conditions (the underground pipe covering height, type, ...
Bonilla-Correa, Dalia M.; Coronado-Hernández, Oscar Enrique; Fuertes-Miquel, Vicente S.; Besharat, Mohsen; Ramos, Helena M.(MDPI AG, 2023-04)
[EN] The estimation of thermodynamic behavior during filling processes with entrapped air in water pipelines is a complex task as it requires solving a system of algebraic-differential equations. A lot of different numerical ...
[EN] 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 ...
Besharat, Mohsen; Coronado-Hernández, Oscar Enrique; Fuertes-Miquel, Vicente S.; Viseu, Maria Teresa; Ramos, Helena M.(Taylor & Francis, 2018-11-14)
[EN] 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. ...
Besharat, Mohsen; Coronado-Hernández, Oscar Enrique; Fuertes-Miquel, Vicente S.; Viseu, Maria Teresa; Ramos, Helena M.(Taylor & Francis, 2019-08-06)
[EN] The occurrence of sub-atmospheric pressure in the drainage of pipelines containing an air pocket has been known as a major cause of several
serious problems. Accordingly, some system malfunction and pipe buckling ...
Ramos, Helena M.; Fuertes-Miquel, Vicente S.; Tasca, Elias; Coronado-Hernández, Oscar E.; Besharat, Mohsen; Zhou, Ling; Karney, Bryan(MDPI AG, 2022-08)
[EN] The risks associated with unsteady two-phase flows in pressurized pipe systems must be considered both in system design and operation. To this end, this paper summarizes experimental tests and numerical analyses that ...
Coronado-Hernández, Oscar E.; Besharat, Mohsen; Fuertes-Miquel, Vicente S.; Ramos, Helena M.(MDPI AG, 2019-08-31)
[EN] 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. ...
Aguirre-Mendoza, Andrés M.; Paternina-Verona, Duban A.; Oyuela, Sebastián; Coronado-Hernández, Oscar E.; Besharat, Mohsen; Fuertes-Miquel, Vicente S.; Iglesias Rey, Pedro Luís; Ramos, Helena M.(MDPI AG, 2022-03)
[EN] The sizing of air valves during the air expulsion phase in rapid filling processes is crucial for design purposes. Mathematical models have been developed to simulate the behaviour of air valves during filling processes ...
Ramos, Helena M.; Pérez-Sánchez, Modesto; Mullur Gurupr, Prajwal Shandilya; Carraveta, Armando; Kuriqui, Alban; Coronado-Hernández, Oscar Enrique; Fernandes, João F.P.; Costa Branco, Paulo J.; López Jiménez, Petra Amparo(MDPI AG, 2024-02)
[EN] The world's water infrastructures suffer from inefficiencies, such as high energy consumption and water losses due to inadequate management practices and feeble pressure regulation, leading to frequent water and energy ...
Fuertes-Miquel, Vicente S.; Coronado-Hernández, Oscar E.; Mora-Melia, Daniel; Iglesias Rey, Pedro Luís(Taylor & Francis, 2019-04-21)
[EN] 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 ...
Coronado-Hernández, Oscar Enrique; Fuertes-Miquel, Vicente S.; Besharat, Mohsen; Ramos, Helena M.(Associacao Portuguesa dos Recursos Hidricos, 2019-12)
[EN] Water filling processes in pipes generate overpressures that must be considered so that the facilities do not fail during their operation. The filling manoeuvres with air trapped in water pipes have been studied by ...
[EN] Different methods of two-dimensional and three-dimensional numerical resolution models have been used to predict the air¿water interaction in pipe systems in the early twenty-first century, where reliable and adequate ...
[EN] Inertial models have been used by researchers to simulate the draining and filling processes in water pipelines, based on the evolution of the main hydraulic and thermodynamic variables. These models use complex ...
Paternina-Verona, Duban A.; Coronado-Hernández, Oscar Enrique; Espinoza-Román, Héctor G.; Fuertes-Miquel, Vicente S.; Ramos, Helena M.(MDPI AG, 2023-03)
[EN] A filling operation generates continuous changes over the shape of an air¿water interface, which can be captured using a 3D CFD model. This research analyses the influence of different hydro-pneumatic tank pressures ...
Coronado-Hernández, Oscar Enrique; Fuertes-Miquel, Vicente S.; Iglesias Rey, Pedro Luís; Martínez-Solano, F. Javier(American Society of Civil Engineers, 2018)
[EN] 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 ...
[EN] The draining operation involves the presence of entrapped air pockets, which are expanded
during the phenomenon occurrence generating drops of sub-atmospheric pressure pulses. Vacuum
air valves should inject enough ...
Ramos, Helena M.; Kuriqui, Alban; Besharat, Mohsen; Creaco, Enrico; Tasca, Elias; Coronado-Hernández, Oscar E.; Pienika, Rodolfo; Iglesias Rey, Pedro Luís(MDPI AG, 2023-03)
[EN] One of the main factors contributing to water scarcity is water loss in water distribution systems, which mainly arises from a lack of adequate knowledge in the design process, optimization of water availability, and ...