Evaluation of a hybrid kinetics/mixing-controlled combustion model for turbulent premixed and diffusion combustion using KIVA-II

1990 ◽  
Author(s):  
H. NGUYEN ◽  
MING-JYH WEY
Keyword(s):  
Combustion Model ◽  
Diffusion Combustion ◽  
And Diffusion ◽  
Turbulent Premixed

scholarly journals A Fractal Dynamic SGS Combustion Model for Large Eddy Simulation of Turbulent Premixed Flames

2016 ◽  
Vol 188 (9) ◽  
pp. 1472-1495 ◽  
Author(s):  
Katsuhiro Hiraoka ◽  
Yuki Minamoto ◽  
Masayasu Shimura ◽  
Yoshitsugu Naka ◽  
Naoya Fukushima ◽  
...  
Keyword(s):  
Large Eddy Simulation ◽  
Premixed Flames ◽  
Combustion Model ◽  
Turbulent Premixed Flames ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Turbulent Premixed

The Study on PCCI Mode of Diesel Engine Fueled with Methanol/Dimethyl Ether

2014 ◽  
Vol 607 ◽  
pp. 629-632
Author(s):  
Yan Yan ◽  
Yu Sheng Zhang
Keyword(s):  
Dimethyl Ether ◽  
Alternative Fuels ◽  
Volume Fraction ◽  
Good Alternative ◽  
Diffusion Combustion ◽  
Compression Ignition ◽  
Temperature Reaction ◽  
High Temperature Reaction ◽  
Three Stages ◽  
And Diffusion

Taking into account China's abundant coal resources, methanol and DME(Dimethyl Ether) obtained from coal are good alternative fuels. The research project is to utilize the fuel of DME and methanol in diesel engines for new combustion models PCCI (Premixed Charge Compression Ignition).The tests of the PCCI mode with different boundary conditions were studied on PCCI test bench. PCCI combustion is consisted of three stages: low temperature reaction of DME, high-temperature reaction of DME and diffusion combustion reaction of methanol. DME as combustion improver should be kept relatively low concentration, and with the decrease of methanol, its concentration need to be reduced. Methanol and formaldehyde are important parts of HC emission, their volume fraction was about 70%.

The Effects of Turbulent Burning Velocity Models in a Swirl-Stabilized Lean Premixed Combustor

2018 ◽  
Vol 35 (4) ◽  
pp. 365-372
Author(s):  
Jong-Chan Kim ◽  
Won-Chul Jung ◽  
Ji-Seok Hong ◽  
Hong-Gye Sung
Keyword(s):  
Burning Velocity ◽  
Premixed Combustion ◽  
Dynamic Mode Decomposition ◽  
Combustion Model ◽  
Dynamic Mode ◽  
Turbulent Premixed Combustion ◽  
Velocity Models ◽  
Flame Structures ◽  
Turbulent Burning Velocity ◽  
Turbulent Premixed

Abstract The effects of turbulent burning velocities in a turbulent premixed combustion simulation with a G-equation are investigated using the 3D LES technique. Two turbulent burning velocity models – Kobayashi model, which takes into account the burning velocity pressure effect, and the Pitsch model, which considers the flame regions on the premixed flame structure – are implemented. An LM6000 combustor is employed to validate the turbulent premixed combustion model. The results show that the flame structures in front of the injector have different shapes in each model because of the different turbulent burning velocities. These different flame structures induce changes in the entire combustor flow field, including in the recirculation zone. The dynamic mode decomposition (DMD) method and linear acoustic analysis provide the dominant acoustic mode.

Regimes of Unstable Expansion and Diffusion Combustion of a Hydrocarbon Fuel Jet

2018 ◽  
Vol 54 (3) ◽  
pp. 255-263 ◽  
Author(s):  
V. V. Lemanov ◽  
V. V. Lukashov ◽  
R. Kh. Abdrakhmanov ◽  
V. A. Arbuzov ◽  
Yu. N. Dubnishchev ◽  
...  
Keyword(s):  
Hydrocarbon Fuel ◽  
Diffusion Combustion ◽  
Fuel Jet ◽  
And Diffusion

A Fractal Dynamic SGS Combustion Model for LES of Turbulent Premixed Flames under a Pressure Rising Condition

2017 ◽  
Vol 2017 (0) ◽  
pp. J0520301
Author(s):  
Rie YAMADA ◽  
Yuzuru NADA ◽  
Basimil YENERDAG ◽  
Yuki MINAMOTO ◽  
Hiroyasu SHIMURA ◽  
...  
Keyword(s):  
Premixed Flames ◽  
Combustion Model ◽  
Turbulent Premixed Flames ◽  
Turbulent Premixed
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