Flame–wall interactions of lean premixed flames under elevated, rising pressure conditions

Yenerdag, Basmil; Minamoto, Yuki; Aoki, Kozo; Shimura, Masayasu; Nada, Yuzuru; Tanahashi, Mamoru

doi:10.1016/j.fuel.2016.10.096

Cited by 29 publications

(2 citation statements)

References 26 publications

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“…Sotton et al (Sotton et al, 2005) investigated the effect of interaction between methane-air laminar flame and wall on quenching distance and wall heat flux in the pressure range of 0.05-1.7 MPa under dry wall condition, in which study the relationship between the maximum heat flux peak and the flame quenching distance was examined. Yenerdag et al (Yenerdag et al, 2017) found that the flame quenching distance was directly related to the wall temperature, where the peak heat flow density at the wall was the key factor affecting the quenching distance, through the utilization of a direct numerical simulation (DNS) method. Kim et al (Kim et al, 2006) investigated the quenching process of a flame inside a flat plate in a two-dimensional slit burner and found that the wall temperature had a direct effect on the heat transfer losses of the flame-wall interaction process as well as the annihilation of wall radical chemistry.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Modeling Study of Wall Film Effect on Combustion Characteristics of Premixed Flame in a Constant Volume Combustion Bomb

et al. 2022

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The primary objective of the present study was to investigate the impact of wall film on the combustion characteristics of premixed flames in internal combustion engines through the joint experimental and numerical techniques. The interaction between the premixed methane-air flame and n-dodecane film attached to the wall of a constant volume combustion bomb was experimentally examined. The flame propagation processes, as well as pressure evolution were quantitatively characterized. Then, computational fluid dynamic (CFD) simulation was performed incorporating the combustion chemistry model. To enable efficient simulation of the chemically reacting flow in engine chambers, a simplified modeling approach based on a two-step reaction scheme was developed. A compact reaction model for the selected model fuel n-dodecane was constructed and reduced to include 35 chemical species and 180 reactions. The flame propagation process of the premixed flame and its interaction with dry and wet walls was studied. The results showed that the propagation of the premixed flame could be divided into four stages, and the existence of the slit structure increased the instability of the flame structure in the near-wall region. The wall film tended to promote emissions, producing more unburned hydrocarbons, soot precursors and aldehydes.

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Section: Introductionmentioning

confidence: 99%

Experimental and Modeling Study of Wall Film Effect on Combustion Characteristics of Premixed Flame in a Constant Volume Combustion Bomb

et al. 2022

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“…Direct Numerical Simulation (Yenerdag et al, 2017), (Kondo et al, 2017) (Fuyuto et al, 2006) ( , 2011) μPIV 50μm~100m (Jainski et al, 2012), ( , 2016), 1 1 (Fujimoto et al, 2011) kHz (…”

mentioning

confidence: 99%

Effect of wall heat insulation on wall heat transfer mechanism in rapid compression and expansion environment

Harada

Tanaka

Nakao

et al. 2018

Transactions of the JSME (In Japanese)

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Heat insulation by a wall material which has low heat capacity and heat conductivity is one of the effective ways to reduce heat transfer. By the heat insulated coating, wall temperature is fluctuated following the behavior of in-cylinder gas temperature, which decreases the gap between gas and wall temperature. In order to suppress wall heat transfer in wide engine operation range, Model Based Development is required. In this study, wall heat transfer mechanism under wall temperature fluctuated condition by heat insulation was investigated by simultaneous measurement of wall heat flux and flow behavior in wall boundary layer in RCEM. As a result, it was clarified that turbulent energy was influenced by wall temperature behavior, which impact on heat transfer coefficient. In addition, non-dimensional velocity distribution in wall boundary layer was not changed drastically by wall temperature behavior. In terms of modeling under heat insulated condition, wall heat flux was able to be predicted well by wall heat transfer model taking into account of density change in wall boundary layer.Keywords : ICEs, Heat insulated coating, Wall heat transfer, Modeling, Thin-film thermocouple, PIV (Assanis and Badillo, 1987), ( Fujimoto et al., 2011), (Yamashita et al., 2012, (Kosaka et al., 2013) Initial wall temperature (K) 298Initial gas pressure Atmospheric Pressure (Han and Reitz, 1997)(Harada et al., 2017) Harada, Y., Uchida, K., Tanaka, T., Sato, K., Qianjin, Z., Fujimoto, H., Yamashita, H. and Tanahashi, M., Wall heat transfer of undeveloped turbulent flow in internal combustion engines, COMODIA2017 (2017), A204. © The Japan Society of Mechanical EngineersHuh, K.Y., Chang, I.P. and Martin, J.K., A comparison of boundary layer treatments for heat transfer in IC engines, SAE Paper, No.900252 (1990).Jainski, C., Lu, L., Dreizler, A. and Sick, V., High-speed micro particle image velocimetry studies of boundary-layer flows in a direct-injection engine, International Journal of Engine Research, Vol.14, No.3 (2012), pp. 247-259. , , , Vol.47, No.1 (2016), pp.47-54. , , , B , Vol.77, No.784, (2011

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Evaluation of a Neural Network-Based Closure for the Unresolved Stresses in Turbulent Premixed V-Flames

Nikolaou

Chrysostomou

Minamoto

2020

Flow Turbulence Combust

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Flame–wall interactions of lean premixed flames under elevated, rising pressure conditions

Cited by 29 publications

References 26 publications

Experimental and Modeling Study of Wall Film Effect on Combustion Characteristics of Premixed Flame in a Constant Volume Combustion Bomb

Experimental and Modeling Study of Wall Film Effect on Combustion Characteristics of Premixed Flame in a Constant Volume Combustion Bomb

Effect of wall heat insulation on wall heat transfer mechanism in rapid compression and expansion environment

Evaluation of a Neural Network-Based Closure for the Unresolved Stresses in Turbulent Premixed V-Flames

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