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Listar por palabra clave "Entrapped air"

Mostrando ítems 1-6 de 6

Attenuation of pipeline filling over-pressures through trapped air

Paternina-Verona, Duban A.; Coronado-Hernández, Oscar E.; Héctor Espinoza-Román; Arrieta-Pastrana, Alfonso; Elias Tasca; Fuertes-Miquel, Vicente S.; Ramos, Helena M. (Taylor & Francis, 2024-05)

[EN] Entrapped air pockets in water pipelines play a significant role in influencing transient over-pressures during filling procedures. Several research is focused on highlighting the attenuation of pressure peaks in pipes ...
Comparative Study of Intake and Exhaust Air Flows of Different Commercial Air Valves

Iglesias Rey, Pedro Luis; Fuertes-Miquel, Vicente S.; García Mares, Francisco José; Martínez-Solano, F. Javier (Elsevier, 2014)

This work aims to study in detail the methods of experimental characterization of air valves. In the first part, different experimental techniques are compared to the measurements made in the Air Valves Test Bench built ...
Computational Determination of Air Valves Capacity Using CFD Techniques

García-Todolí, Salvador; Iglesias Rey, Pedro Luís; Mora Melia, Daniel; Martínez-Solano, F. Javier; Fuertes-Miquel, Vicente S. (MDPI AG, 2018-10)

[EN] The analysis of transient flow is necessary to design adequate protection systems that support the oscillations of pressure produced in the operation of motor elements and regulation. Air valves are generally used in ...
Concerning dynamic effects in pipe systems with two-phase flows: pressure surges, cavitation and ventilation

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

Fuertes-Miquel, Vicente S.; Coronado-Hernández, Oscar Enrique; Iglesias Rey, Pedro Luís; Mora Melia, Daniel (Taylor & Francis, 2019)

[EN] 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 ...
Understanding air release through air valves

Carlos Alberola, María del Mar; Arregui de la Cruz, Francisco; Cabrera Marcet, Enrique; Palau, C.V. (American Society of Civil Engineers, 2011)

[EN] Water transients with entrapped air can originate large pressure peaks that can severely damage distribution networks. Entrapped air can have a damping or amplifying effect on these undesirable pressure peaks. ...