APPLICATION OF ADVANCED COMBUSTION MODELS IN INTERNAL COMBUSTION ENGINES BASED ON 3-D CFD LES APPROACH

Authors

  • Oldřich Vítek Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Automotive, Combustion Engine and Railway Engineering, Technická 4, CZ-16607 Prague 6, Czech Republic
  • Jan Macek Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Automotive, Combustion Engine and Railway Engineering, Technická 4, CZ-16607 Prague 6, Czech Republic
  • Vít Doleček Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Automotive, Combustion Engine and Railway Engineering, Technická 4, CZ-16607 Prague 6, Czech Republic
  • Zbyněk Syrovátka Czech Technical University in Prague, Faculty of Mechanical Engineering, Department of Automotive, Combustion Engine and Railway Engineering, Technická 4, CZ-16607 Prague 6, Czech Republic
  • Zoran Pavlovic AVL-AST d.o.o., Ulica kneza Koclja 22, 2000 Maribor, Slovenia
  • Peter Priesching AVL List GmbH, Alte Poststraße 152, 8020 Graz, Austria
  • Ferry Tap AVL Dacolt BV, Grote Looiersstraat 28, 6211 JJ Maastricht, Netherlands

DOI:

https://doi.org/10.14311/AP.2021.61.0014

Keywords:

Internal Combustion Engine, 3-D CFD, LES, tabulated chemistry, ECFM, combustion, injector, spray

Abstract

This paper deals with the application of advanced simulation techniques for combustion modeling in the case of an internal combustion engine. The main focus is put on models with a high predictive ability hence 3-D CFD was selected while using LES (turbulence model) and detailed chemistry (both SI and CI ICE) or turbulent flame propagation (SI ICE). Both engine types are considered – spark ignited ICE and a compression ignited engine. Examples are shown and comparison with available experimental data is presented. The main conclusion is that such models are capable of high quality predictions while very little tuning is needed. This is desired as such models could be applied in the early phases of ICE development. On the other hand, such calculations are very demanding in terms of computational power.

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Published

2021-02-10

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Section

Non-Refereed Articles