Abstract
An integrated experimental and Large-Eddy Simulation (LES) study is presented for homogeneous premixed combustion in a spark-ignition engine, called the Transparent Combustion Chamber engine. The emphasis has been on developing strategies for making quantitative comparisons between high-speed/high-resolution optical diagnostics and LES using common metrics for both the experiments and the simulations, and focusing on the important early flame development period. Results from two different LES turbulent combustion models are presented, using the same numerical methods and computational mesh. Both models yield Cycle-to-Cycle Variations in combustion that are higher than what is observed in the experiments. The results revealed strengths and limitations of the experimental diagnostics and the LES models, and suggest directions for future diagnostic and simulation efforts. Particularly, flame development between the times corresponding to the laminar-to-turbulent transition was observed and 1% mass-burned fraction are especially important in establishing the subsequent combustion event for each cycle.
| Original language | English (US) |
|---|---|
| Article number | 160164 |
| Journal | Oil and Gas Science and Technology |
| Volume | 72 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 1 2017 |
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All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Fuel Technology
- Energy Engineering and Power Technology
Cite this
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An Experimental and Simulation Study of Early Flame Development in a Homogeneous-charge Spark-Ignition Engine. / Shekhawat, Y.; Haworth, Daniel Connell; D'Adamo, A.; Berni, F.; Fontanesi, S.; Schiffmann, P.; Reuss, D. L.; Sick, V.
In: Oil and Gas Science and Technology, Vol. 72, No. 5, 160164, 01.09.2017.Research output: Contribution to journal › Article
TY - JOUR
T1 - An Experimental and Simulation Study of Early Flame Development in a Homogeneous-charge Spark-Ignition Engine
AU - Shekhawat, Y.
AU - Haworth, Daniel Connell
AU - D'Adamo, A.
AU - Berni, F.
AU - Fontanesi, S.
AU - Schiffmann, P.
AU - Reuss, D. L.
AU - Sick, V.
PY - 2017/9/1
Y1 - 2017/9/1
N2 - An integrated experimental and Large-Eddy Simulation (LES) study is presented for homogeneous premixed combustion in a spark-ignition engine, called the Transparent Combustion Chamber engine. The emphasis has been on developing strategies for making quantitative comparisons between high-speed/high-resolution optical diagnostics and LES using common metrics for both the experiments and the simulations, and focusing on the important early flame development period. Results from two different LES turbulent combustion models are presented, using the same numerical methods and computational mesh. Both models yield Cycle-to-Cycle Variations in combustion that are higher than what is observed in the experiments. The results revealed strengths and limitations of the experimental diagnostics and the LES models, and suggest directions for future diagnostic and simulation efforts. Particularly, flame development between the times corresponding to the laminar-to-turbulent transition was observed and 1% mass-burned fraction are especially important in establishing the subsequent combustion event for each cycle.
AB - An integrated experimental and Large-Eddy Simulation (LES) study is presented for homogeneous premixed combustion in a spark-ignition engine, called the Transparent Combustion Chamber engine. The emphasis has been on developing strategies for making quantitative comparisons between high-speed/high-resolution optical diagnostics and LES using common metrics for both the experiments and the simulations, and focusing on the important early flame development period. Results from two different LES turbulent combustion models are presented, using the same numerical methods and computational mesh. Both models yield Cycle-to-Cycle Variations in combustion that are higher than what is observed in the experiments. The results revealed strengths and limitations of the experimental diagnostics and the LES models, and suggest directions for future diagnostic and simulation efforts. Particularly, flame development between the times corresponding to the laminar-to-turbulent transition was observed and 1% mass-burned fraction are especially important in establishing the subsequent combustion event for each cycle.
UR - http://www.scopus.com/inward/record.url?scp=85033777084&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85033777084&partnerID=8YFLogxK
U2 - 10.2516/ogst/2017028
DO - 10.2516/ogst/2017028
M3 - Article
VL - 72
JO - Oil and Gas Science and Technology
JF - Oil and Gas Science and Technology
SN - 1294-4475
IS - 5
M1 - 160164
ER -