The Numerical Simulation of Diesel Spray Combustion with LES-CMC

Bottone, Francesco; Kronenburg, A.; Gosman, David; Marquis, A. J.

doi:10.1007/s10494-012-9415-y

Cited by 40 publications

(15 citation statements)

References 47 publications

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“…Very promising results obtained using the LES-Eulerian PDF method were presented recently for a lab-scale swirl stabilised kerosene spray in a simplified combustion chamber [9,10] and good agreement with experimental data was demonstrated. Probably the first LES-CMC computations of auto-ignition in Diesel engine like conditions resulted to an acceptable agreement with experimental findings [11]. It is evident that LES, with an advanced combustion model such as CMC or the PDF method, have great potential in capturing flame transients.…”

mentioning

confidence: 82%

“…10 and 11. This took place for instance in RANS simulations [4,5,37], but also in recent LES-CMC [11]. In Ref.…”

Section: Cmc For Two-phase Flowsmentioning

confidence: 95%

“…Borghesi et al [6] found that inclusion of the spray terms affected the solution in the region where the evaporation was the strongest and that these terms delayed the auto-ignition slightly, which suggests that the spray terms in the CMC equation could probably improve the results obtained in Ref. [11]. The terms h |η, |η have to be related to their unconditional counterparts.…”

Section: Cmc For Two-phase Flowsmentioning

confidence: 97%

“…ßÞ contribution from the liquid phase (11) where the radiation and pressure work terms have been neglected. The terms e α and e h in Eqs.…”

Section: Cmc For Two-phase Flowsmentioning

confidence: 99%

“…In Ref. [11], studying the auto-ignition of heptane spray in a bomb, it was observed that the auto-ignition times were over-predicted for high temperature cases. Borghesi et al [6] found that inclusion of the spray terms affected the solution in the region where the evaporation was the strongest and that these terms delayed the auto-ignition slightly, which suggests that the spray terms in the CMC equation could probably improve the results obtained in Ref.…”

Section: Cmc For Two-phase Flowsmentioning

confidence: 99%

See 4 more Smart Citations

LES/CMC of Blow-off in a Liquid Fueled Swirl Burner

Tyliszczak

Cavaliere

Mastorakos

2013

Flow Turbulence Combust

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Large Eddy Simulations of two-phase flames with the Conditional Moment Closure combustion model have been performed for flow conditions corresponding to stable and blow-off regimes in a swirl n-heptane spray burner. In the case of stable flame (i.e. low air velocity), the predicted mean and r.m.s. velocities and the location and shape of the flame agree reasonably well with experiment. In particular, the presence of localised extinctions is captured in agreement with experiment. Using model constants previously calibrated against piloted jet methane flames (Sandia F) with localised extinction, we obtain that at the experimentally determined blow-off velocity of the swirling spray flame, the predicted flame also blows off, demonstrating that the LES-CMC approach can capture the global extinction point in a realistic configuration.

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mentioning

confidence: 82%

“…10 and 11. This took place for instance in RANS simulations [4,5,37], but also in recent LES-CMC [11]. In Ref.…”

Section: Cmc For Two-phase Flowsmentioning

confidence: 95%

Section: Cmc For Two-phase Flowsmentioning

confidence: 97%

“…ßÞ contribution from the liquid phase (11) where the radiation and pressure work terms have been neglected. The terms e α and e h in Eqs.…”

Section: Cmc For Two-phase Flowsmentioning

confidence: 99%

Section: Cmc For Two-phase Flowsmentioning

confidence: 99%

See 3 more Smart Citations

LES/CMC of Blow-off in a Liquid Fueled Swirl Burner

Tyliszczak

Cavaliere

Mastorakos

2013

Flow Turbulence Combust

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CFDModeling of Diesel Combustion

Vogiatzaki

2017

Encyclopedia of Maritime and Offshore Engineering

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Diesel engines are the most efficient combustion engines today, playing an important role in transport of goods and passengers on land and on sea. The main drivers for the design of future engines is the control of the emissions without sacrificing their advanced fuel economy. These drivers led to important innovations in multiple components of the engine, which, however, complicated the nature of the processes taking place and increased the need for highly accurate simulation frameworks. In the current article, the focus is on the recent progress of combustion modeling of diesel engines. The major general challenges encountered are first introduced briefly and then the progress in various research areas is reported in more details. Special focus is given to the most commonly used combustion models describing their advantages as well as their shortcomings. In the end, some closing remarks are presented as guidelines for future modeling efforts.

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