Experimental validation of a one-dimensional twin-entry radial turbine model under non-linear pulse conditions
| Autor: | Pablo Soler, Francisco José Arnau, José Ramón Serrano, Luis Miguel García-Cuevas, Raymond Cheung |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
020209 energy Radial turbine Twin turbine Aerospace Engineering Ocean Engineering 02 engineering and technology Turbine Reciprocating motion Pulsating flow 0203 mechanical engineering 0202 electrical engineering electronic engineering information engineering Mechanical Engineering INGENIERIA AEROESPACIAL Mechanics Experimental validation Instantaneous turbine performance Pulse (physics) One-dimensional model Turbocharger Nonlinear system 020303 mechanical engineering & transports Internal combustion engine Automotive Engineering MAQUINAS Y MOTORES TERMICOS |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| Popis: | [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 with a twin-entry-type turbine has been tested under engine-like pulse conditions by means of a specifically built gas stand. To obtain high-resolution quality data, the turbine and turbine line pipes have been instrumented with mean and instantaneous pressure sensors as well as temperature and mass flow sensors, employing a uniquely designed rotating valve for the pulse generation. This experimental configuration enables to obtain the pressure decomposition in both inlets and outlets of the turbine. Using the experimental data obtained, the model is fully validated, with special focus on the reflected and transmitted components for analysing the performance of the model and its non-linear acoustics prediction capabilities. The model presents a very high degree of correlation with the experimental results, providing a range of errors similar to the uncertainty of the measurements, even in the medium- and high-frequency spectra. The author(s) disclosed receipt of the following financial support for the research, authorship and/or publication of this article: This work was supported by the 'Ayuda a Primeros Proyectos de Investigacion' (PAID-06-18), Vicerrectorado de Investigacion, Innovacion y Transferencia de la Universitat Politecnica de Valencia (UPV), Valencia, Spain. P.S. was partially supported through contract FPI-2017-S2-1428 of Programa de Apoyo para la Investigacion y Desarrollo (PAID) of Universitat Politecnica de Valencia. |
| Databáze: | OpenAIRE |
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