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
Citations
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New insights into large eddy simulation
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Spray measurement technology: a review
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Large eddy simulation of a reacting spray flame with multiple realizations under compression ignition engine conditions
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Stratified turbulent flames: Recent advances in understanding the influence of mixture inhomogeneities on premixed combustion and modeling challenges
TL;DR: In this paper, the authors introduce experimental facilities and numerical tools applied to investigating inhomogeneously premixed flames, and summarize recent progress in revealing and understanding local phenomena (e.g., back-supported combustion or generation of flame surface area) that stem from the influence of mixture inhomogenities on flame propagation through flammable reactants.
References
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Proceedings ArticleDOI
Abnormal Combustion including Mega Knock in a 60% Downsized Highly Turbocharged PFI Engine
Proceedings ArticleDOI
Large-Eddy Simulation in IC Engine Geometries
TL;DR: In this article, a large eddy simulation (LES) is used for the analysis of flow dynamics in an IC engine with axisymmetric sudden expansion (S = 0.6) and without swirl.
Journal ArticleDOI
Simulation of complex turbulent flows: recent advances and prospects in wind engineering
TL;DR: In some fields, temporal fluctuations are of great importance; others are satisfied with time-averaged quantities as mentioned in this paper, while the accuracy requirements vary greatly among the fields, including the geophysical and astrophysical sciences, might be satisfied with the order of magnitude results.
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Dynamic Structure Models for Scalar Flux and Dissipation in Large Eddy Simulation
TL;DR: In this paper, a new class of subgrid scale models (dynamic structure models) for large eddy simulation is proposed for subgrid scalar flux and dissipation terms, where the structure of the modeled terms is taken from the corresponding Leonard terms by the use of the test filter size equal to the base filter size and a particular form of the scaling factor is proposed.
Journal ArticleDOI
A Scalar PDF Construction Model for Turbulent Non-Premixed Combustion
Graham M. Goldin,Suresh Menon +1 more
TL;DR: In this article, a new model is presented to construct a realistic form for the joint-scalar probability density function, as opposed to assuming its shape, with application to the moment equation solution of turbulent combustion.