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Listar por palabra clave "Experimental data"

Mostrando ítems 1-20 de 25

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A combined 1D3D CFD approach for reducing mesh dependency in Diesel spray calculations

García-Oliver, José M; Margot , Xandra; Chávez Cobo, Mariany de Jesús; Karlsson, A (PERGAMON-ELSEVIER SCIENCE LTD, 2011)

[EN] A 1D3D-CFD coupled spray model is proposed in this work for the simulation of Diesel sprays under non-evaporative conditions and constant injection velocity in time. The basic idea of the model is to reduce the poor ...
A fluid dynamic model for unsteady compressible flow in wall-flow diesel particulate filters

Torregrosa Huguet, Antonio José; Serrano Cruz, José Ramón; Arnau Martínez, Francisco José; Piqueras Cabrera, Pedro (Elsevier, 2011-01)

The use of particulate filters (DPF) in Diesel engines has become in recent years the standard technology for the control of soot aerosol emissions. Once emissions reduction through the management of filtration and ...
A physically based methodology to extrapolate performance maps of radial turbines

Payri González, Francisco; Serrano Cruz, José Ramón; Fajardo, Pablo; Reyes Belmonte, Miguel Ángel; Gozalbo Belles, Ricardo (Elsevier, 2012-03)

This paper details a physically based methodology to perform an extrapolation of the radial turbine performance maps, both mass flow characteristics and the efficiency curve. This method takes into account a narrow range ...
Analysis and Optimization of the Transient Operation of Gasoline Turbocharged Direct Injection Engines Under High EGR Conditions

González Domínguez, David (Universitat Politècnica de València, 2023-06-05)

[ES] El transporte por carretera es uno de los sectores que más contribuyen al cambio climático. Por ello, muchos gobernantes a nivel mundial están promoviendo una transición hacia medios de transporte sostenibles que no ...
Analysis of fouling resistances under dynamic membrane filtration

Vincent Vela, Maria Cinta; Cuartas Uribe, Beatriz Elena; Alvarez Blanco, Silvia; Lora García, Jaime (Elsevier, 2011-04)

The mechanisms of fouling in the ultrafiltration of polyethylene glycol (PEG) are analysed using the complete blocking and the intermediate blocking Hermia's models adapted to crossflow filtration. The parameters of these ...
Analytical model to predict the effect of a finite impedance surface on the propagation properties of 2D Sonic Crystals

Romero García, Vicente; Sánchez Pérez, Juan Vicente; García Raffi, Luis Miguel (IOP Publishing: Hybrid Open Access, 2011)

The use of sonic crystals (SCs) as environmental noise barriers has certain advantages from both the acoustical and the constructive points of view with regard to conventional ones. However, the interaction between the SCs ...
Assessment by means of gas dynamic modelling of a pre-turbo diesel particulate filter configuration in a turbocharged HSDI diesel engine under full-load transient operation

Bermúdez, Vicente; Serrano Cruz, José Ramón; Piqueras, P.; García Afonso, Óscar (SAGE Publications, 2011)

Diesel particulate filters (DPF) are becoming a standard technology in diesel engines because of the need for compliance with forthcoming regulations regarding soot emissions. When a great degree of maturity in management ...
Characterization of impervious layers using scale models and an inverse method

Alba Fernández, Jesús; Escuder Silla, Eva María; Ramis Soriano, Jaime; Rey Tormos, Romina María del (Elsevier, 2009-09-25)

We describe a novel procedure that uses an inverse method to determine unknown parameters for impervious layers used in multilayer structures. The proposed model of the multilayer structure is limited to an ideal double ...
Development and validation of a finite element model for water - CO2 coaxial gas-coolers

Sanchez, D.; Cabello, R.; Llopis, R.; Torrella Alcaraz, Enrique (Elsevier, 2012-05)

The gas-cooler heat exchanger is a characteristic device of the refrigeration plants that use CO2 as the working fluid in transcritical conditions. The proper gas-cooler sizing, allows getting the maximum effectiveness in ...
Dynamic data driven applications systems (DDDAS) for multidisciplinary optimisation (MDO)

Patón Pozo, Pedro José (Universitat Politècnica de València, 2020-05-04)

[ES] Nowadays, the majority of optimisation processes that are followed to obtain new optimum designs involve expensive simulations that are costly and time comsuming. Besides, designs involving aerodynamics are usually ...
Effect of nanopore geometry on ion current rectification

Apel, Pavel Yu; Blonskaya, Irina V.; Orelovitch, Oleg L.; Ramirez Hoyos, Patricio; Sartowska, Bozena A. (IOP Publishing: Hybrid Open Access, 2011-03-16)

We present the results of systematic studies of ion current rectification performed on artificial asymmetric nanopores with different geometries and dimensions. The nanopores are fabricated by the ion track etching method ...
Energetic evaluation of an internal heat exchanger in a CO2 transcritical refrigeration plant using experimental data

Torrella Alcaraz, Enrique; Sanchez, D.; Llopis, R.; Cabello, R. (ELSEVIER SCI LTD, 2011)

[EN] The performance of an Internal Heat Exchanger (IHX) operating in a CO 2 transcritical refrigeration plant is analysed, from an energetic point of view, in this work. The evaluation is based on experimental data by ...
Flow regime effects on non-cavitating injection nozzles over spray behaviour

Payri, Raul; Salvador, F.J.; Gimeno, Jaime; Novella Rosa, Ricardo (ELSEVIER SCIENCE INC, 2011)

[EN] This paper deals with the influence of flow regime (laminar, transition or turbulent) on the internal flow behavior, and how it affects the spray development in diesel nozzles. In particular, the research described ...
Heat transfer modelling in honeycomb wall-flow diesel particulate filters

Galindo, José; Serrano Cruz, José Ramón; Piqueras, P.; García Afonso, Óscar (Elsevier, 2012-07)

Heat transfer in wall-flow monoliths has gained in interest because of the widespread adoption of these systems by automotive industry to fulfil soot emission regulations and the importance of heat exchange on the regeneration ...
Influence of drying method on rehydration kinetics and rehydration capacity of apricot and apple

Contreras Monzón, Carolina Ivonne; Martín-Esparza, M.E.; Martínez Navarrete, Nuria (Wiley, 2012-04)

This study aims to determine the influence of microwave drying coupled with air drying of apricot and apple in terms of the rehydration rate and capacity of dried samples. The microwave power level was 0.4 W/g for apricot ...
Large Eddy Simulation for high pressure flows: Model extension for compressible liquids

Payri, Raul; Tormos, B.; Gimeno, Jaime; Bracho Leon, Gabriela (PERGAMON-ELSEVIER SCIENCE LTD, 2011)

[EN] The present study gives a general outline for the fluid-dynamical calculation of flows at high pressure conditions. The main idea is to present a mathematical description of high pressure processes in liquids at ...
Microstructure and photocatalytic activity of suspension plasma sprayed TiO2 coatings on steel and glass substrates

Bannier, E.; Darut, G.; Sánchez, E.; Denoirjean, A.; Bordes, M.C.; Salvador Moya, Mª Dolores; Rayón Encinas, Emilio; Ageorges, H. (Elsevier, 2011-10-25)

In this study, TiO 2 coatings were deposited by suspension plasma spraying (SPS) from a commercial TiO 2 nanoparticle suspension on two different substrates: a standard stainless steel and a Pyrex glass. Coatings were ...
Modeling noise experiments performed at AKR-2 and CROCUS zero-power reactors

Hursin, M.; Zoia, A.; Rouchon, A.; Brighenti, A.; Zmijarevic, I.; Santandrea, S.; Vinai, P.; Mylonakis, A.; Yi, H.; Demazière, C.; Lamirand, V.; Ambrozic, K.; Yamamoto, T.; Hübner, S.; Knospe, A.; Lange, C.; Yum, S.; Macián, R.; Vidal-Ferràndiz, Antoni; Ginestar Peiro, Damián; Verdú Martín, Gumersindo Jesús (Elsevier, 2023-12-15)

[EN] CORTEX is a EU H2020 project (2017-2021) devoted to the analysis of ¿reactor neutron noise¿ in nuclear reactors, i.e. the small fluctuations occurring around the stationary state due to external or internal disturbances ...
Modeling Ultrasonically Assisted Convective Drying of Eggplan

García Pérez, José Vicente; Ozuna López, César; Ortuño Cases, Carmen; Cárcel Carrión, Juan Andrés; Mulet Pons, Antonio (Taylor & Francis, 2011)

[EN] Modeling constitutes a fundamental tool with which to analyze the influence of ultrasound on mass transfer phenomena during drying. In this work, the study of the effect of power ultrasound application on the drying ...
Numerical simulation and extended validation of two-phase compressible flow in diesel injector nozzles

Salvador Rubio, Francisco Javier; Hoyas, S; Novella Rosa, Ricardo; Martínez López, Jorge (Professional Engineering Publishing, 2011)

In this paper, the ability of a computational fluid dynamics code to reproduce cavitation phenomena accurately is checked by comparing data acquired by numerical simulations against those obtained from different experiments ...