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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A priori evaluation of subgrid-scale combustion models for diesel engine applications
TL;DR: In this article, two-dimensional DNS of autoigniting turbulent mixing layers are performed at temperature and pressure conditions similar to those observed in diesel engines, and the results are used to evaluate the performance of two common subgrid-scale combustion models that are employed in diesel combustion modeling.
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Large-eddy simulations of diesel spray with a fine grid in a constant-volume vessel
TL;DR: In this paper, a numerical methodology is developed to simulate liquid fuel spray, break-up and evaporation under high-temperature high-pressure diesel-engine-like conditions.
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TL;DR: In this article, the Lagrangian Particle Tracking (LPT) and Large Eddy Simulation (LES) schemes have been implemented in the OpenFOAM freeware for simulating ultra-high injection pressure diesel and Marine Diesel Fuel (MDF) sprays.
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Natural Gas Fueling: A LES Based Injection and Combustion Modeling for Partially Stratified Engines
TL;DR: In this article, a validated LES solver has been used to represent the main occurring phenomena into an experimentally implemented Constant Volume Combustion Chamber (CVCC) for different air fuel ratios, both homogeneous and non-homogeneous combustion processes have been simulated in order to compare and emphasize the benefits of the PSC-SI and the impact of the choice of operating conditions.
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