Large-eddy simulations for internal combustion engines – a review
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TLDR
A review of using large-eddy simulation (LES) in computational fluid dynamic stud- ies of internal combustion engines is presented in this paper, where the major modelling approaches for turbulence, combustion, scalars, and liquid sprays are discussed.Abstract:
A review of using large-eddy simulation (LES) in computational fluid dynamic stud- ies of internal combustion engines is presented. Background material on turbulence model- ling, LES approaches, specifically for engines, and the expectations of LES results are discussed. The major modelling approaches for turbulence, combustion, scalars, and liquid sprays are discussed. In each of these areas, a taxonomy is presented for the various types of models appropriate for engines. Advantages, disadvantages, and examples of use in the litera- ture are described for the various types of models. Several recent examples of engine studies using LES are discussed. Recommendations and future prospects are included.read more
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Journal ArticleDOI
Development of a Large-Eddy Simulation Methodology for the Analysis of Cycle-to-Cycle Combustion Variability of a Lean Burn Engine
O. Benoit,Karine Truffin,Stéphane Jay,J.A. van Oijen,Y. Drouvin,T. Kayashima,P. Adomeit,Christian Angelberger +7 more
TL;DR: In this paper, the Coherent Flame Model approach is used and enriched via a correlation for the laminar flame velocity accounting for nonlinear stretch effects, and the results are analyzed in terms of cycle-to-cycle combustion variabilities and the influence of the spark-plug orientation.
Journal ArticleDOI
Local instantaneous heat flux measurements in an internal combustion engine using a MEMS sensor
TL;DR: In this paper , the local instantaneous heat transfer characteristics were investigated using an originally developed thin-film resistance-type sensor, which was fabricated by micro-electro-mechanical systems (MEMS) technology, had advantages in the sensitivity, the spatial resolution and the number of measurement points compared with conventional sensors.
Journal ArticleDOI
A wall-adapted zonal URANS/LES methodology for the scale-resolving simulation of engine flows
Clara Iacovano,Alessandro D'Adamo,Stefano Fontanesi,Giovanni Di Ilio,Vesselin Krassimirov Krastev +4 more
TL;DR: In this paper, a wall-adapted zonal URANS/LES methodology is presented for the multidimensional simulation of modern direct-injection engines, which is the latest update of a...
Proceedings ArticleDOI
Numerical Simulations of a GDI Engine Flow Using LES and POD
TL;DR: In this paper, the Smagorinsky LES sub-grid scale turbulence model is applied to a complex engine geometry with realistic engineering mesh size and computational expense whilst still meeting the filter width requirements to resolve the majority of large scale turbulent structures.
Journal ArticleDOI
Numerical analysis of the influence of early fuel injection on charge motion in a direct injection spark ignition engine using scale-resolving simulations:
TL;DR: In this paper, the effect of early fuel injection on the charge motion in a direct injection spark ignition engine concerning cyclic fluctuations of the flow field was analyzed and a numerical analysis was presented.
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