TY - JOUR

T1 - Numerical Study of Ethanol Suspension Combustion in Air

AU - Ponomarev, A. A.

AU - Sharaborin, D. K.

AU - Khrebtov, M. Yu

AU - Mullyadzhanov, R. I.

AU - Dulin, V. M.

N1 - Numerical study was financially supported by the Ministry of Science and Higher Education of the Russian Federation (Agreement No. 075-15-2020-806). The experiments are carried out within the framework of the project of the Russian Science Foundation No. 22-19-00803 at the Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences. Публикация для корректировки.

PY - 2023/4

Y1 - 2023/4

N2 - This paper describes a numerical simulation of a laminar flame of a premixed mixture of ethanol and air at atmospheric pressure with the addition of a suspension of ethanol droplets. The initial fuel–oxidizer ratios in the gas phase are Øgas = 0.844 and 1.125. With account for the fuel in the liquid phase, the total equivalence ratios are Øtot = 1.195 and 1.476, respectively. The calculation is performed using the method of direct numerical simulation with a reduced chemical mechanism. Motion, heating, and evaporation of droplets are determined using the Lagrange approximation. The numerical simulation results are verified using experimental data (flame cone photographs and laser-induced fluorescence data). It is revealed that all the droplets evaporate in the flame front heating region and the presence of fuel in the liquid phase strongly increases the CO concentration both in the calculation and in the experiment.

AB - This paper describes a numerical simulation of a laminar flame of a premixed mixture of ethanol and air at atmospheric pressure with the addition of a suspension of ethanol droplets. The initial fuel–oxidizer ratios in the gas phase are Øgas = 0.844 and 1.125. With account for the fuel in the liquid phase, the total equivalence ratios are Øtot = 1.195 and 1.476, respectively. The calculation is performed using the method of direct numerical simulation with a reduced chemical mechanism. Motion, heating, and evaporation of droplets are determined using the Lagrange approximation. The numerical simulation results are verified using experimental data (flame cone photographs and laser-induced fluorescence data). It is revealed that all the droplets evaporate in the flame front heating region and the presence of fuel in the liquid phase strongly increases the CO concentration both in the calculation and in the experiment.

KW - OpenFOAM

KW - ethanol

KW - finite volume method

KW - gas–droplet combustion

KW - laminar cone flame

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85158035230&origin=inward&txGid=68b1b976e91a09c53fef983f166df314

UR - https://www.mendeley.com/catalogue/16ed739c-7a9d-3a18-8c3c-8172c5a49304/

U2 - 10.1134/S0010508223020028

DO - 10.1134/S0010508223020028

M3 - Article

VL - 59

SP - 129

EP - 136

JO - Combustion, Explosion and Shock Waves

JF - Combustion, Explosion and Shock Waves

SN - 0010-5082

IS - 2

ER -