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Listar por palabra clave "Pulsating flow"

Mostrando ítems 1-13 de 13

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 ...
Caracterización CFD-3D de la repercusión de un flujo pulsante a la salida de un turbocompresor centrífugo sobre sus prestaciones

Neila Jiménez, Zeus Aitor (Universitat Politècnica de València, 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 ...
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 the Modeling and Understanding of Cold Pulsating Flow Influence in the Efficiency of Small Radial Turbines for Turbochargers

Serrano Cruz, José Ramón; Arnau Martínez, Francisco José; Fajardo, Pablo; Reyes Belmonte, Miguel Ángel; Vidal, Fabrice (American Society of Mechanical Engineers (ASME), 2012-10)

In the present paper, an unsteady approach to determine the performance of a small radial inflow turbine working under cold pulsating flow is presented. It has been concluded that a reasonably good characterization of ...
Development and validation of a radial variable geometry turbine model for transient pulsating flow applications

Galindo, José; Tiseira Izaguirre, Andrés Omar; Fajardo, P.; García-Cuevas González, Luis Miguel (Elsevier, 2014-09)

This paper presents the development and validation of a one-dimensional radial turbine model able to be used in automotive turbocharger simulations. The model has been validated using results from a numerical 3D CFD ...
Effect of the numerical scheme resolution on quasi-2D simulation of an automotive radial turbine under highly pulsating flow

Galindo, José; Climent, H.; Tiseira Izaguirre, Andrés Omar; García-Cuevas González, Luis Miguel (Elsevier, 2016-01-01)

Automotive turbocharger turbines usually work under pulsating flow because of the sequential nature of engine breathing. However, existing turbine models are typically based on quasi-steady assumptions. In this paper a ...
Experimental theoretical methodology for determination of inertial pressure drop distribution and pore structure properties in wall-flow diesel particulate filters (DPFs)

Payri González, Francisco; Broatch Jacobi, Jaime Alberto; Serrano Cruz, José Ramón; Piqueras Cabrera, Pedro (Elsevier, 2011-12)

Wall-flow particulate filters have been placed as a standard technology for Diesel engines because of the increasing restrictions to soot emissions. The inclusion of this system within the exhaust line requires the development ...
Experimental validation of a one-dimensional twin-entry radial turbine model under non-linear pulse conditions

Serrano, J.R.; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Soler-Blanco, Pablo; Cheung, Raymond (SAGE Publications, 2021-02)

[EN] This article presents the experimental validation of a complete integrated one-dimensional twin-scroll turbine model able to be used in reciprocating internal combustion engine unsteady simulations. A passenger car ...
Experimental validation of a quasi-two-dimensional radial turbine model

Galindo, José; Arnau Martínez, Francisco José; García-Cuevas González, Luis Miguel; Soler-Blanco, Pablo (SAGE Publications, 2018-07-20)

[EN] This article presents the experimental validation of a quasi-two-dimensional radial turbine model able to be used in turbocharged reciprocating internal combustion engine simulations. A passenger car variable-geometry ...
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 ...
Methodology for the Numerical Characterization of a Radial Turbine under Steady and Pulsating Flow

Fajardo Peña, Pablo (Universitat Politècnica de València, 2012-07-26)

The increasing use of turbochargers is leading to an outstanding research to understand the internal flow in turbomachines. In this frame, computational fluid dynamics (CFD) is one of the tools that can be applied to ...
On the applicability of cold acoustic measurements to high-amplitude hot pulsating flows

Torregrosa, A. J.; Piqueras, P.; Sanchis Pacheco, Enrique José; Redondo-Navarro, Álvaro Rafael (Springer-Verlag, 2023-03)

[EN] The experimental characterization of the acoustic characteristics of engine exhaust devices is usually carried out through measurements in cold conditions, due to the intrinsic difficulties associated with proper ...
Simulation and modelling of the performance of radial turbochargers under unsteady flow

Soler Blanco, Pablo (Universitat Politècnica de València, 2020-04-27)

[ES] Está fuera de toda duda que la industria del automóvil está viviendo una profunda transformación que, durante los últimos años, ha progresado a un ritmo acelerado. Debido a la crecientemente estricta regulación sobre ...