Listar Investigaciones por autor "Ramos, Helena M."
Mostrando ítems 1-10 de 10
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Application of Newton–Raphson Method for Computing the Final Air–Water Interface Location in a Pipe Water Filling
Bonilla-Correa, Dalia M.; Coronado-Hernández, Óscar E.; Fuertes-Miquel, Vicente S.; Besharat, Mohsen; Ramos, Helena M. (Cartagena de Indias, 2023)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 ... -
Are digital twins improving urban-water systems efficiency and sustainable development goals?
Ramos, Helena M.; Kuriqi, Alban; Coronado-Hernández, Oscar E.; López-Jiménez, P. Amparo; Pérez-Sánchez, Modesto (Cartagena de Indias, 2023)The use of these new interaction tool implies the improvement of the awareness of the whole system and it lies in improving the sustainability and efficiency of the water systems with the integration of measurements. The ... -
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, Óscar Enrique; Besharat M.; Zhou, Ling; Karney, Bryan (Cartagena de Indias, 2022-07-31)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 ... -
Different Experimental and Numerical Models to Analyse Emptying Processes in Pressurised Pipes with Trapped Air
Paternina-Verona, Duban A; Coronado-Hernández, Oscar E.; Espinoza-Román, Héctor G.; Fuertes-Miquel, Vicente S.; Ramos, Helena M. (Cartagena de Indias, 2023-06-29)In hydraulic engineering, some researchers have developed different mathematical and numerical tools for a better understanding of the physical interaction between water flow in pipes with trapped air during emptying ... -
Effects of orifice sizes for uncontrolled filling processes in water pipelines
Aguirre-Mendoza, Andres M.; Paternina-Verona, Duban A.; Oyuela, Sebastian; Coronado Hernández, Óscar Enrique; Besharat M.; Fuertes Miquel, Vicente S.; Iglesias-Rey P.L.; Ramos, Helena M. (Cartagena de Indias, 2022-03-12)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 ... -
Hydropower Advantages over Batteries in Energy Storage of Off-Grid Systems: A Case Study
Guruprasad, Prajwal S. M.; Quarant, Emanuele; Coronado-Hernández, Oscar E.; Ramos, Helena M. (Cartagena de Indias, 2023-08-30)Microgrids are decentralized power production systems, where the energy production and consumption are very close to each other. Microgrids generally exploit renewable energy sources, encountering a problem of storage, as ... -
Improving Pump Characteristics through Double Curvature Impellers: Experimental Measurements and 3D CFD Analysis
Coronado-Hernández, Oscar Enrique; Useche, Jairo; Abuchar-Soto, Verónica J; Palencia-Díaz, Argemiro; Paternina-Verona, Duban A; Ramos, Helena M.; Abuchar Curi, Alfredo Miguel (Cartagena de Indias, 2023-07-27)The outlet angle and shape of impeller blades are important parameters in centrifugal pump design. There is a lack of detailed studies related to double curvature impellers in centrifugal pumps in the current literature; ... -
Mathematic Modelling of a Reversible Hydropower System: Dynamic Effects in Turbine Mode
Ramos, Helena M.; Coronado-Hernández, Oscar E.; Morgado, Pedro A.; Simão, Mariana (Cartagena de Indias, 2023)Over the past few years, there has been significant interest in the importance of reversible hydro-pumping systems due to their favorable flexibility and economic and environmental characteristics. When designing reversible ... -
Smart Water Grids and Digital Twin for the Management of System Efficiency in Water Distribution Networks
Ramos, Helena M.; Kuriqi, Alban; Besharat, Mohsen; Creaco, Enrico; Tasca, Elias; Coronado-Hernández, Oscar E.; Pienika, Rodolfo; Iglesias-Rey, Pedro (Cartagena de Indias, 2023-03-15)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 ... -
Statistical Approach for Computing Base Flow Rates in Gaged Rivers and Hydropower Effect Analysis
Villalba-Barrios, Andres; Coronado-Hernandez, Oscar E; Fuertes-Miquel, Vicente S.; Coronado-Hernandez, Jairo R.; Ramos, Helena M. (Cartagena de Indias, 2023-06-27)The calculation of base flow rates in rivers is complex since hydrogeological and hydrological studies should be performed. The estimation of base flow rates in storm hydrograph associated to various return periods is ...
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.