TY - JOUR
T1 - Two-dimensional direct numerical simulation of spray flames - Part 1
T2 - Effects of equivalence ratio, fuel droplet size and radiation, and validity of flamelet model
AU - Fujita, Akitoshi
AU - Watanabe, Hiroaki
AU - Kurose, Ryoichi
AU - Komori, Satoru
N1 - Funding Information:
The authors are grateful to Dr. Yuya Baba of Earth Simulator Center, Japan Agency for Marine-Earth Science Technology (JAMSTEC) and Mr. Yutaka Yano of Kyoto University for many useful discussions. A portion of this research was supported by the grant for “Strategic Program-Research Field No. 4: Industrial Innovations” from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT)’s ”Development and Use of Advanced, High-Performance, General-Purpose Supercomputers Project”.
PY - 2013/2
Y1 - 2013/2
N2 - The effects of equivalence ratio, fuel droplet size, and radiation on jet spray flame are investigated by means of two-dimensional direct numerical simulation (DNS). In addition, the validity of an extended flamelet/progress- variable approach (EFPV), in which heat transfer between droplets and ambient fluid including radiation is exactly taken into account, is examined. n-decane (C10H22) is used as liquid spray fuel, and the evaporating droplets' motions are tracked by the Lagrangian method. The radiative heat transfer is calculated using the discrete ordinate method with S8 quadrature approximation. The results show that the behavior of jet spray flame is strongly affected by equivalence ratio and fuel droplet size. The general behavior of the jet spray flames including the heat transfer between droplets and ambient fluid with radiation effect can be captured by EFPV.
AB - The effects of equivalence ratio, fuel droplet size, and radiation on jet spray flame are investigated by means of two-dimensional direct numerical simulation (DNS). In addition, the validity of an extended flamelet/progress- variable approach (EFPV), in which heat transfer between droplets and ambient fluid including radiation is exactly taken into account, is examined. n-decane (C10H22) is used as liquid spray fuel, and the evaporating droplets' motions are tracked by the Lagrangian method. The radiative heat transfer is calculated using the discrete ordinate method with S8 quadrature approximation. The results show that the behavior of jet spray flame is strongly affected by equivalence ratio and fuel droplet size. The general behavior of the jet spray flames including the heat transfer between droplets and ambient fluid with radiation effect can be captured by EFPV.
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U2 - 10.1016/j.fuel.2012.08.044
DO - 10.1016/j.fuel.2012.08.044
M3 - Article
AN - SCOPUS:84870441221
VL - 104
SP - 515
EP - 525
JO - Fuel
JF - Fuel
SN - 0016-2361
ER -