Search Results - "Chiva, S."

Modelling and experimental investigation of horizontal buoyant gas jets injected into stagnant uniform ambient liquid by Harby, K., Chiva, S., Muñoz-Cobo, J.L.

“…•An experimental and theoretical study on buoyant non-condensable gas jets injected horizontally into a high-density liquid ambient at different initial…”
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An experimental investigation on the characteristics of submerged horizontal gas jets in liquid ambient by Harby, K., Chiva, S., Muñoz-Cobo, J.L.

“…•Horizontal gas jets injected into water ambient through straight tubes is investigated.•Gas jet structure was carried out using photographic…”
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Biological reactor retrofitting using CFD-ASM modelling by Climent, J., Basiero, L., Martínez-Cuenca, R., Berlanga, J.G., Julián-López, B., Chiva, S.

“…[Display omitted] •CFD models were used to retrofit a full-scale tank being validated experimentally.•A CFD virtual study was conducted to optimize the…”
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A comprehensive hydrodynamic analysis of a full-scale oxidation ditch using Population Balance Modelling in CFD simulation by Climent, J., Martínez-Cuenca, R., Carratalà, P., González-Ortega, M.J., Abellán, M., Monrós, G., Chiva, S.

“…•The CFD model predicted a reduction of 60% in the axial fluid velocity within the outer channel when air was supplied.•The PBM analysis revealed the…”
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Characterization of the gas-liquid interfacial waves in vertical upward co-current annular flows by Cuadros, J.L., Rivera, Y., Berna, C., Escrivá, A., Muñoz-Cobo, J.L., Monrós-Andreu, G., Chiva, S.

“…•Upward cocurrent annular measurements of film and interfacial wave properties.•Development and custom manufacturing of conductance probes.•Effects of…”
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Development and validation of a one-dimensional solver in a CFD platform for boiling flows in bubbly regimes by Gómez-Zarzuela, C., Peña-Monferrer, C., Chiva, S., Miró, R.

“…This paper presents a new one-dimensional solver for two-phase flow simulations where boiling is involved. The solver has been implemented within the OpenFOAM®…”
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An experimental study on bubble entrainment and flow characteristics of vertical plunging water jets by Harby, K., Chiva, S., Muñoz-Cobo, J.L.

“…•Vertical liquid jet plunging into a liquid surface has been studied.•We have performed a series of experimental work for short nozzles of small…”
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CFD modeling of a fixed-bed biofilm reactor coupling hydrodynamics and biokinetics by Prades, L., Dorado, A.D., Climent, J., Guimerà, X., Chiva, S., Gamisans, X.

“…[Display omitted] •Different tools for modeling fixed-bed biofilm reactors were evaluated.•Models performance was validated with experimental measurements…”
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A CFD-DEM solver to model bubbly flow. Part I: Model development and assessment in upward vertical pipes by Peña-Monferrer, C., Monrós-Andreu, G., Chiva, S., Martínez-Cuenca, R., Muñoz-Cobo, J.L.

“…[Display omitted] •Development of a CFD-DEM solver to model bubbly flow.•Implementation of an equivolumetric subelement method.•Development of a seeding…”
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Local parameters of air–water two-phase flow at a vertical T-junction by Monrós-Andreu, G., Martínez-Cuenca, R., Torró, S., Chiva, S.

“…Significant experimental work and modeling about vertical T-junction as a phase separator has been done for churn and annular flows, but a survey on the…”
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The development and validation of a new simulator for endourology by Llorente-Ortega, M., Polo, R., Chiva, S., Martín-Calvo, N., Sáenz-Santa-María, E., Diez-Caballero, F., Fernandez, S.

“…Simulation in medicine has developed a lot in the last few decades. There is a broad range of simulators available, above all for training in surgical…”
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A CFD-DEM solver to model bubbly flow. Part II: Critical validation in upward vertical pipes including axial evolution by Peña-Monferrer, C., Monrós-Andreu, G., Chiva, S., Martínez-Cuenca, R., Muñoz-Cobo, J.L.

“…[Display omitted] •Implementation of a new validation scheme to compare CFD-DEM results with experiments.•Validation of radial profiles at different heights…”
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A criterion for the transition from wall to core peak gas volume fraction distributions in bubbly flows by Mendez-Diaz, S., Zenit, R., Chiva, S., Muñoz-Cobo, J.L., Martinez-Martinez, S.

“…► A criterion is proposed to predict the radial gas fraction distribution in an upward bubbly pipe flow. ► Critical values of the Reynolds and Weber numbers…”
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Health questionnaire analysis and development of satisfaction questionnaire for patients treated with extracorporeal shock wave lithotripsy (SATISLIT) by Hevia, M, Robles, J E, Chiva, S, Doménech, P, García, A, Ancizu, F J, Velis, J M, Rosell, D, Diez-Caballero, F, Guillén, F, Miñana, B, Pascual, J I

“…INTRODUCTIONDue to the absence of specific instruments to study the psychosocial sphere of patients undergoing extracorporeal shock wave lithotripsy (SWL), the…”
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On the One-Dimensional Modeling of Vertical Upward Bubbly Flow by Verdú, G., Miró, Rafael, Chiva Vicent, Sergio, Gómez-Zarzuela, C., Peña-Monferrer, C., Muñoz-Cobo, J. L.

“…The one-dimensional two-fluid model approach has been traditionally used in thermal-hydraulics codes for the analysis of transients and accidents in…”
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Health questionnaire analysis and development of satisfaction questionnaire for patients treated with extracorporeal shock wave lithotripsy (SATISLIT) by Hevia, M., Robles, J.E., Chiva, S., Doménech, P., García, A., Ancizu, F.J., Velis, J.M., Rosell, D., Diez-Caballero, F., Guillén, F., Miñana, B., Pascual, J.I.

“…Due to the absence of specific instruments to study the psychosocial sphere of patients undergoing extracorporeal shock wave lithotripsy (SWL), the objective…”
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CFD Turbulence Study of PWR Spacer-Grids in a Rod Bundle by Peña-Monferrer, C., Chiva Vicent, Sergio, Muñoz-Cobo, J. L.

“…Nuclear fuel bundles include spacers essentially for mechanical stability and to influencethe flow dynamics and heat transfer phenomena along the fuel rods…”
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Water temperature effect on upward air-water flow in a vertical pipe: Local measurements database using four-sensor conductivity probes and LDA by Monrós-Andreu, G., Chiva, S., Martínez-Cuenca, R., Torró, S., Juliá, J. E., Hernández, L., Mondragón, R.

“…Experimental work was carried out to study the effects of temperature variation in bubbly, bubbly to slug transition. Experiments were carried out in an upward…”
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EXPERIMENTAL STUDY ON TWO-PHASE FLOW CHARACTERISTICS USING CONDUCTIVITY PROBES AND LASER DOPPLER ANEMOMETRY IN A VERTICAL PIPE by Chiva, S., Julia, J. E., Hernandez, L., Mendez, S., Muñoz-Cobo, J. L., Romero, A.

“…An upward isothermal co-current air-water flow in a vertical pipe (52 mm inner diameter) has been experimental investigated. Local measurements of void…”
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A reduced order model of BWR dynamics with subcooled boiling and modal kinetics: application to out of phase oscillations by Muñoz-Cobo, J.L., Chiva, S., Sekhri, A.

“…In this paper we develop a reduced order model that includes the sub-cooled boiling. New additional equations have been obtained for the following dynamics…”
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