Listar por autor "Lema, Marcos"
Mostrando ítems 1-10 de 10
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Analysis of fluid hammer occurrence with phase change and column separation due to fast valve opening by means of flow visualization
Lema, Marcos; López Peña, Fernando; Buchlin, Jean-Marie; Rambaud, Patrick; Steelant, Johan (Elsevier, 2016-07-07)[Abstrac]: This paper presents an experimental investigation on the fluid hammer phenomenon generated when filling a pipe line under vacuum conditions with a closed end. This physical configuration, although it can be found ... -
Damping of three-dimensional waves on coating films dragged by moving substrates
Barreiro-Villaverde, David; Gosset, Anne; Lema, Marcos; Méndez, Miguel Alfonso (American Institute of Physics, 2023-07-12)[Abstract]: Paints and coatings often feature interfacial defects due to disturbances during the deposition process which, if they persist until solidification, worsens the product quality. In this article, we investigate ... -
Experimental and Numerical Investigation of the Extrusion and Deposition Process of a Poly(lactic Acid) Strand with Fused Deposition Modeling
Gosset, Anne; Barreiro-Villaverde, David; Becerra Permuy, Juan Carlos; Lema, Marcos; Ares-Pernas, Ana; Abad, María-José (MDPI, 2020)[Abstract] In the last decade, Fused Deposition Modeling (FDM) has gained popularity for allowing the fabrication of pieces with complex shapes. The final quality of the pieces is strongly linked to the shape, size and ... -
Fluid hammer with gas desorption in a liquid- lling tube: experiments with three di erences liquids
Lema, Marcos; López Peña, Fernando; Rambaud, Patrick; Buchlin, Jean-Marie; Steelant, Johan (Springer, 2015-09-11)[Abstract]: The opening of a fast valve followed by a fluid line with a closed end generates a fluid hammer that may involve several multiphase phenomena. This is the case of the propulsion systems in satellites during the ... -
Influence of Gas Desorption in a Safety Relief Valve Undergoing Cavitation
Lema, Marcos; Gosset, Anne; López Peña, Fernando (Korean Society for Fluid Machinery (KSFM), Chinese Society of Engineering Thermophysics (CSET), Turbomachinery Society of Japan (TSJ), IAHR Section on Hydraulic Machinery and Systems (IAHR), 2019-12-27)[Abstract]: In this study, the characterization of the flow through a safety relief valve (SRV) is performed in presence of cavitation and gas desorption. For this purpose, a transparent safety relief valve model is used ... -
Liquid column separation due to fluid hammer occurrence in propellant lines
Lema, Marcos; Gosset, Anne; López Peña, Fernando; Steelant, Johan (American Institute of Aeronautics and Astronautics, 2022-10-07)[Abstract]: When a pressurized liquid enters a pipeline with a closed-end and under vacuum conditions, the resulting liquid front suddenly is brought to rest at the end of the pipe. This type of flow configuration is found ... -
Mejora docente e incremento de la visibilidad en la ingeniería naval e industrial a través del uso de instalaciones experimentales
Míguez González, Marcos; Gosset, Anne; Díaz Casás, Vicente; Lema, Marcos; Santiago Caamaño, Lucía (Universidade da Coruña, Cufie, 2020)[Resumen] El Grupo de Innovación Educativa CITEX de la Universidade da Coruña está formado por docentes de las titulaciones relacionadas con la Ingeniería Naval y Oceánica y la Ingeniería Industrial que se imparten en la ... -
Multyphase fluid hammer : modeling, experiments and simulations
Lema, Marcos (Universidade da Coruña, 2013)[Abstract] This thesis deals with the experimental and numerical analysis of the water hammer phenomenon generated by the discharge of a pressurized liquid into a pipeline kept under vacuum conditions. This ow configuration ... -
Numerical Simulations and Modal Analysis to Investigate the Defects in a Coating Process
Barreiro-Villaverde, David; Lema, Marcos; Gosset, Anne (MDPI, 2021-10)Abstract: This work investigates the hydrodynamics of jet wiping, a coating process in which a thin slot gas jet impinges on a coating film dragged by a moving strip; thus, reducing the coating thickness and developing a ... -
Simulation of the Fluid–Structure Interaction in Fishing Nets
Roget, Sergio; Lema, Marcos; Gosset, Anne (MDPI, 2021-10)Abstract: The main objective of this work is the development of a Computational Fluid Dynamics model coupled with a structural code for the simulation and optimization of fishing gears. As fishing nets are highly deformable ...