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Browsing by Author "García Tíscar, Jorge"

Now showing items 1-20 of 21

Acoustic and pressure characteristics of a ported shroud turbocompressor operating at near surge conditions

Sharma, Sidharath; Broatch, A.; GARCIA TISCAR, JORGE; Nickson, Ambrose K.; Allport, John M. (Elsevier, 2019-05)

[EN] The operation of compressor at lower mass flow rates is limited by surge which is marked by large fluctuations in operational variables and accompanied by significant increase in noise. Ported shroud casing treatment ...
Acoustic characterisation of a small high-speed centrifugal compressor with casing treatment: an experimental study

Sharma, Sidharath; Broatch, A.; GARCIA TISCAR, JORGE; Allport, John M.; Nickson, Ambrose K. (Elsevier, 2019-12)

[EN] With the advancements in manufacturing, materials and computational methods, turbomachinery designs have become more efficient providing higher specific power and reliability with lower weight and cost. The rotational ...
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 ...
Análisis experimental del impacto de la geometría del conducto de entrada de turbocompresores en el ruido de boca

Rubio Latorre, Álvaro (2017-06-01)

Consulta en la Biblioteca ETSI Industriales (Riunet)
Avances en la investigación aeroacústica de turbocompresores centrífugos

García Tíscar, Jorge (2015-06-02)

[EN] The present work addresses the necessity of accurate and reliable characterization of the noise produced by the turbocomrpessors of reciprocating internal combustion engines. Experimental research on the matter has ...
Dynamic mode decomposition of the acoustic field in radial compressors

Broatch, A.; GARCIA TISCAR, JORGE; Roig-Villanueva, Ferran; Sharma, Sidharath (Elsevier, 2019-07)

[EN] Widely recognized since the beginning of air travel as a major issue, noise reduction remains nowadays a pressing concern for all stakeholders in the aviation industry. While aeroengine compressors, specially at the ...
Estudio de la interacción fluido-estructura en una placa plana en condiciones de acoplamiento unidireccional

Sánchez Moreno, Francisco (2019-06-28)

[EN] In the present study an analysis about Fluid-Structure Interaction (FSI) is carried out.The geometry is a rectangular flat plate which is attached by one of its sides to a squarecross section bar. This bar is in charge ...
Experimental analysis of cyclical dispersion in compression-ignited versus spark-ignited engines and its significance for combustion noise numerical modeling

Broatch, A.; López, J. Javier; Garcia Tiscar, Jorge; Gómez-Soriano, Josep (ASME International, 2018-10)

[EN] As noise pollution remains one of the biggest hurdles posed by thermal engines, increasing efforts are made to alleviate the generation of combustion noise from the early design stage of the chamber. Since the complexity ...
Experimental methodology for turbocompressor in-duct noise evaluation based on beamforming wave decomposition

Torregrosa, A. J.; Broatch Jacobi, Jaime Alberto; Margot , Xandra; García Tíscar, Jorge (Elsevier, 2016-08-18)

An experimental methodology is proposed to assess the noise emission of centrifugal turbocompressors like those of automotive turbochargers. A step-by-step procedure is detailed, starting from the theoretical considerations ...
Experiments on turbocharger compressor acoustics

García Tíscar, Jorge (2017-04-07)

As turbocharging requirements raise to face an increasingly stricter environmental regulation of internal combustion engines, concerns regarding their acoustic emission become more pressing. Since downsized engines require ...
Impact of simple surge-enhancing inlet geometries on the acoustic behaviour of a turbocompressor

Broatch, A.; Margot, Xandra; Garcia Tiscar, Jorge; Roig-Villanueva, Ferran (SAGE Publications, 2018)

[EN] This paper reports the results of an experimental campaign where four different inlet geometries for the compressor of an automotive turbocharger were acoustically characterized. These four geometries (a straight pipe ...
Interfaz gráfica para el procesado y optimización de señales del banco de impulsos para de la respuesta de silenciadores de motores

Giménez Bolinches, Albert (2017-05-03)

El IU CMT-Motores Térmicos oferta un TFM consistente en el desarrollo de una interfaz gráfica en MatLab y optimización de un sistema para el procesamiento de las señales adquiridas en un banco de impulsos, referente a la ...
Local flow measurements in a turbocharger compressor inlet

Torregrosa, A. J.; Broatch, A.; Margot, Xandra Marcelle; García Tíscar, Jorge; Narvekar, Y.; Cheung, R. (Elsevier, 2017)

[EN] This paper describes an experimental study carried out with the objective of characterizing flow instabilities in turbocharger compressors, specially the distribution of the high-temperature compressed back flow that ...
Measuring turbocharger compressor inlet backflow through particle image velocimetry

Torregrosa, A. J.; Broatch, A.; Pastor, José V.; GARCIA TISCAR, JORGE; Sharma, Raj K.; Cheung, R. (Elsevier, 2018-12)

[EN] An experimental measurement campaign is presented where particle image velocimetry (PIV) was used in an effort to characterize the velocity field in a turbocharger compressor when unstable operating conditions lead ...
Methodology for experimental validation of a CFD model for predicting noise generation in centrifugal compressors

Broatch Jacobi, Jaime Alberto; Galindo Lucas, José; Navarro García, Roberto; García Tíscar, Jorge (Elsevier, 2014-12)

Centrifugal compressors working in the surge side of the map generate a broadband noise in the range of 1-3 kHz, named as whoosh noise. This noise is perceived at strongly downsized engines operating at particular conditions ...
Modal decomposition of the unsteady flow field in compression-ignited combustion chambers

Torregrosa, A. J.; Broatch, A.; Garcia Tiscar, Jorge; Gómez-Soriano, Josep (Elsevier, 2018-02)

[EN] In this paper, the unsteady behaviour of a compression-ignited (CI) engine combustion chamber is studied by analysing the results of a Computational Fluid Dynamics (CFD) model through the application of different flow ...
Numerical and experimental analysis of automotive turbocharger compressor aeroacoustics at different operating conditions

Broatch Meza, Alberto; Galindo, José; Navarro García, Roberto; García Tíscar, Jorge (Elsevier, 2016-10)

Centrifugal compressor aeroacoustics are analyzed by means of a three-dimensional CFD model. Three operating points at nominal compressor speed are simulated ranging from best efficiency point to near-surge conditions. ...
On the influence of inlet elbow radius on recirculating backflow, whoosh noise and efficiency in turbocharger compressors

Broatch, A.; Ruiz, S.; Garcia Tiscar, Jorge; Roig-Villanueva, Ferran (Elsevier, 2018)

[EN] While the influence of inlet geometry on turbocharger compressor behaviour has usually been investigated in terms of performance, surge margin and efficiency, data is scarce regarding the impact of the inlet flow field ...
Potential of dual spray injectors for optimising the noise emission of gasoline partially premixed combustion in a 2-stroke HSDI CI engine

Broatch, A.; Novella Rosa, Ricardo; Garcia Tiscar, Jorge; Gómez-Soriano, Josep (Elsevier, 2018-04)

[EN] This paper evaluates the potential advantages of introducing a new injector concept with a dual set of orifices in a 2-stroke engine operating with gasoline partially premixed combustion (PPC gasoline), specially in ...
Puesta a punto de una instalación para el estudio de los efectos térmicos sobre el comportamiento de juntas de turbinas de sobrealimentación de MCIA

Sanchez Gisbert, Maria (2019-02-11)

[ES] El presente TrabajoFinal de Grado consistióen la adecuación de una instalación del Departamento de Motores y Máquinas Térmicas de la Universidad Politécnica de Valencia para realizar ensayos experimentalesde ...