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Browsing by Author "Navarro García, Roberto"

Now showing items 1-20 of 44

A numerical approach for predicting flow-induced acoustics at near-stall conditions in an automotive turbocharger compressor

Navarro García, Roberto (2014-11-13)

Se realiza un modelo CFD-3D de un compresor centrífugo. Se determina la configuración numérica adecuada para simular puntos de funcionamiento cercanos a bombeo. Se validan los resultados frente a ensayos experimentales ...
Acoustic characterization of automotive turbocompressors

Torregrosa, A. J.; Broatch Jacobi, Jaime Alberto; Navarro García, Roberto; García Tíscar, Jorge (SAGE Publications (UK and US), 2015-01)

The performance of different experimental techniques proposed in the literature for acoustic characterization was assessed through the study of the noise generated by the compressor of an automotive turbocharger under ...
Analysis of the influence of different real flow effects on computational fluid dynamics boundary conditions based on the method of characteristics

Galindo, José; Tiseira Izaguirre, Andrés Omar; Fajardo, Pablo; Navarro García, Roberto (Elsevier, 2013-04)

Nowadays, turbocharged internal combustion engines (ICEs) are very common in automotive powerplants, monopolizing the Diesel sector and having a steadily increasing percentage in the gasoline one. In this frame, the interest ...
Análisis CFD 3D de la transferencia de calor y la condensación en un enfriador de recirculación de gases de escape de baja presión

Bernabeu Vázquez, Ambara (2020-10-08)

[ES] La recirculación de gases de escape de baja presión (LP-EGR) permite disminuir las emisiones nocivas a la atmósfera penalizando poco las prestaciones del motor. Una de las cosas que hay que tener en cuenta al incorporar ...
Análisis CFD de la condensación en el EGR de baja presión bajo condiciones de flujo pulsante

García Felis, Daniel (2020-09-15)

[ES] El objetivo del presente documento será el de analizar la influencia que tiene el flujo pulsante en la formación de condesados en la unión entre el aire fresco y la recirculación de gases de escape de baja presión ...
Análisis CFD de la influencia de la voluta en el flujo de un compresor centrífugo

García Felis, Daniel (2017-09-28)

[EN] The present final work has as a main objective the creation of a three dimensional volute¿s model, from a real model obtained by a three dimensional scanner. The objective is to create a model that can be edited ...
Análisis del ruido generado por un compresor centrífugo trabajando cerca de bombeo mediante CFD

Díaz Picó, Carles (2013-11-14)

Consulta en la Biblioteca ETSI Industriales (Riunet)
Análisis y validación de un modelo CFD 2D de una etapa de turbina axial

Martínez Viguer, Maria (2019-09-19)

[ES] Estudio CFD bidimensional de una etapa de turbina axial de geometría conocida. Tras realizar un modelo 2D de la geometría de sus álabes, se configura la simulación CFD y se efectúa un estudio de independencia de malla. ...
Aplicación del método "Role-Playing" en prácticas de mantenimiento de aeronaves y su efecto en la motivación del alumno

García-Cuevas González, Luis Miguel; Carreres Talens, Marcos; Tiseira Izaguirre, Andrés Omar; Navarro García, Roberto (Editorial Universitat Politècnica de València, 2016-07-19)

[EN] The “Role-Playing” method has proved to be highly effective in the learning process, facilitating the understanding of theoretical contents and stimulating and motivating the students. In order to improve the student ...
Caracterización CFD-3D de la repercusión de un flujo pulsante a la salida de un turbocompresor centrífugo sobre sus prestaciones

Neila Jiménez, Zeus Aitor (2018-06-08)

[ES] En el siguiente trabajo se realiza un estudio CFD-3D (mediante STAR-CCM+) del comportamiento de un flujo pulsante de un compresor centrífugo y se compara dicho comportamiento con el de un flujo continuo, observando ...
Caracterización de la regeneración activa de filtros de partículas Diesel de flujo de pared a elevada altitud de conducción

García Ventura, Cristian (2020-10-14)

[ES] En este trabajo se lleva a cabo la caracterización del proceso de regeneración del filtro de partículas de un motor Diesel de Renault, el K9K EURO6d-temp. Para ello, se ha tenido en cuenta el impacto del aumento de ...
Cálculo y análisis del flujo en una turbina de un turbogrupo operando en condiciones fuera de diseño.

Paes Martí, Mónica (2016-09-12)

[EN] Due to the acceleration and the deceleration in automotive urban driving cycles, turbochargers experience unusual flow conditions for thermal turbomachinery. The knowledge of the right flow behavior at such off-design ...
Centrifugal compressor influence on condensation due to Long Route-Exhaust Gas Recirculation mixing

Galindo, José; Navarro, Roberto; Tarí, Daniel; García -Olivas, Guillermo (Elsevier, 2018-11-05)

[EN] State of the art techniques for reducing pollutant emission in internal combustion engines often require local flow assessment, specially in the air management field. This work addresses the interaction between a ...
Characterization of a radial turbocharger turbine in pulsating flow by means of CFD and its application to engine modeling

Galindo, José; Fajardo, Pablo; Navarro García, Roberto; García-Cuevas González, Luis Miguel (Elsevier, 2013-03)

This paper presents a numerical study analyzing the effect of pulsating flow in a variable geometry radial inflow turbine. The turbine behavior is analyzed under isentropic pulses, which are similar to those created by a ...
Contribution to Tip Leakage Loss Modeling in Radial Turbines Based on 3D Flow Analysis and 1D Characterization

Serrano, J.R.; Navarro, Roberto; García-Cuevas González, Luis Miguel; Inhestern, Lukas Benjamin (Elsevier, 2019-08)

[EN] The characterization of tip leakage flow plays an important role for one-dimesional loss modeling and design in radial turbine research. Tip leakage losses can be expressed as function of fluid momentum and mass flow ...
Coupling methodology of 1D finite difference and 3D finite volume CFD codes based on the Method of Characteristics

Galindo, José; Tiseira, Andrés Omar; Fajardo, Pablo; Navarro, R. (PERGAMON-ELSEVIER SCIENCE LTD, 2011)

[EN] This paper describes the methodology followed to perform a co-simulation between 1D (OpenWAM) and 3D (FLUENT) CFD codes. The Method of Characteristics (MoC) has been chosen to transfer the information between the two ...
Desarrollo de una metodologia computacional para la reproduccion y simulacion de la geometria real de un compresor radial

García Andreu, Adrián (2014-06-04)

[ES] En una primera aproximaci on, se tratar a de generar un modelo geom etrico lo m as preciso posible del rotor de un compresor radial, a partir del modelo tridimensional escaneado de un rotor real mediante los m odulos ...
Development and verification of an in-flow water condensation model for 3D-CFD simulations of humid air streams mixing

Serrano, J.R.; Piqueras, P.; Navarro, Roberto; Tarí, Daniel; Meano, Cesare Maria (Elsevier, 2018-05-15)

[EN] Bulk flow condensation caused by the mixing of air streams at different temperatures and humidities is a thermodynamic process that requires strong assumptions to be calculated with low computational effort. The ...
Development of a Segregated Compressible Flow Solver for Turbomachinery Simulations

Benajes Calvo, Jesus Vicente; Galindo Lucas, José; Fajardo, P.; Navarro García, Roberto (CASRPCenter of Advanced Scientific Research and Publications, 2014)

[EN] A steady multiple reference frame segregated compressible solver and an unsteady sliding mesh one are developed using OpenFOAM® to simulate turbomachinery. For each of the two solvers, governing equations, numerical ...
Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes

Torregrosa, A. J.; Fajardo, Pablo; Gil Megías, Antonio; Navarro García, Roberto (Taylor & Francis Group, 2012-09)

[EN] Numerical computations are commonly used for better understanding the unsteady processes in internal combustion engine components and their acoustic behavior. The acoustic characterization of a system requires that ...