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Three-dimensional computational fluid dynamics engine knock prediction and evaluation based on detailed chemistry and detonation theory

  • Engine knock is an important phenomenon that needs consideration in the development of gasoline-fueled engines. In our days, this development is supported using numerical simulation tools to further understand and predict in-cylinder processes. In this work, a model tool chain which uses a detailed chemical reaction scheme is proposed to predict the auto-ignition behavior of fuels with different octane ratings and to evaluate the transition from harmless auto-ignitive deflagration to knocking combustion. In our method, the auto-ignition characteristics and the emissions are calculated using a gasoline surrogate reaction scheme containing pathways for oxidation of ethanol, toluene, n-heptane, iso-octane and their mixtures. The combustion is predicted using a combination of the G-equation based flame propagation model utilizing tabulated laminar flame speeds and well-stirred reactors in the burned and …

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Metadaten
Author: Corinna NetzerORCiD, Lars SeidelORCiD, Michal Pasternak, Harry Lehtiniemi, Cathleen Perlman, Frédéric Ravet, Fabian MaußORCiD
DOI:https://doi.org/10.1177/1468087417740271
ISSN:1468-0874
ISSN:2041-3149
Title of the source (English):International Journal of Engine Research
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2018
Tag:Engine knock is an important phenomenon
Volume/Year:19
Issue number:1
First Page:33
Last Page:44
Faculty/Chair:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Thermodynamik / Thermische Verfahrenstechnik
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