Simulation of Coupling Euler Spray Model and Flamelet-Based Combustion Model

被引：0
|
作者：
Shang W. [1 ,2 ]
He Z. [2 ]
Xuan T. [1 ]
Cao J. [3 ]
García-Oliver J.M. [3 ]
机构：
[1] School of Energy and Power Engineering, Jiangsu University, Zhenjiang
[2] Institute for Energy Research, Jiangsu University, Zhenjiang
[3] CMT-Motores Térmicos, Universitat Politècnica de València
来源：
Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) | 2021年 / 39卷 / 06期
关键词：
Chemistry reaction mechanism; N-dodecane; Spray model; Unsteady flamelet model;
D O I：
10.16236/j.cnki.nrjxb.202106068
中图分类号：
学科分类号：
摘要：
The Spray A from engine combustion network(ECN)was modelled in the frame of Reynolds-averaged Navier-stokes equations(RANS)with a Euler spray model in conjunction with an unsteady flamelet progress variable( UFPV)combustion model. The spray atomization and turbulent combustion of n-dodecane under non-combustion and combustion conditions were modeled respectively, and the calculation results of five different framework chemical reaction mechanisms of n-dodecane were analyzed. The results show that the models can accurately predict the distribution of spray concentration profile and velocity profile in time and space, as well as the flame structure at the quasi-steady state. The ignition delay, lift-off length and soot are sensitive by chemical reaction mechanism. © 2021, Editorial Office of the Transaction of CSICE. All right reserved.
引用
收藏
页码：531 / 538
页数：7
相关论文
共 23 条
  • [1] Shang W, He Z, Wang Q, Et al., Experimental and analytical study on capture spray liquid penetration and combustion characteristics simultaneously with hydrogenated catalytic biodiesel/diesel blended fuel, Applied Energy, 226, pp. 947-956, (2018)
  • [2] Dukowicz J K., A particle-fluid numerical model for liquid sprays, Journal of Computational Physics, 35, 2, pp. 229-253, (1980)
  • [3] Oefelein J C, Dahms R N, Lacaze G., Detailed modeling and simulation of high-pressure fuel injection processes in diesel engines, SAE International Journal of Engines, 5, 3, pp. 1410-1419, (2012)
  • [4] Dahms R N, Manin J, Pickett L M, Et al., Understanding high-pressure gas-liquid interface phenomena in diesel engines, Proceedings of the Combustion Institute, 34, 1, pp. 1667-1675, (2013)
  • [5] Vallet A, Borghi R., An Eulerian model of atomization of a liquid jet, Computational Fluid Mechanics, 11, pp. 1015-1020, (1999)
  • [6] Naud B, Novella R, Pastor J M, Et al., RANS modelling of a lifted H<sub>2</sub>/N<sub>2</sub> flame using an unsteady flamelet progress variable approach with presumed PDF, Combustion and Flame, 162, 4, pp. 893-906, (2015)
  • [7] Oijen J A V, Goey L P H D., Modelling of premixed laminar flames using flamelet-generated manifolds, Combustion Science and Technology, 161, 1, pp. 113-137, (2000)
  • [8] Pierce C D, Moin P., Progress-variable approach for large-eddy simulation of non-premixed turbulent combustion, Journal of Fluid Mechanics, 504, pp. 73-97, (2004)
  • [9] Williams F A., Recent Advances in Theoretical Descriptions of Turbulent Diffusion Flames, pp. 189-208, (1975)
  • [10] Engine Combustion Network
123