折流燃烧室两相喷雾燃烧流场数值模拟

颜应文; 宋双文; 胡好生; 王倚阳; 雷雨冰; 赵坚行; 林志勇

折流燃烧室两相喷雾燃烧流场数值模拟

1.
南京航空航天大学能源与动力学院,南京 210016
2.
中国航空工业集团公司中国航空动力机械研究所,湖南株洲 412002

基金项目: 中国博士后科学基金(20090461115); 江苏省博士后科研资助计划(0901033C)

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出版历程
- 收稿日期: 2010-04-22
- 修回日期: 2010-07-05
- 刊出日期: 2011-05-28

Numerical investigations of two-phase spray combustion flow fields in slinger annular combustor

1.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2.
China Aviation Powerplant Research Institute, Aviation Industry Corporation of China, Zhuzhou Hunan 412002, China

摘要

摘要: 在任意曲线坐标系下对折流燃烧室两相喷雾燃烧流场进行数值模拟,采用偏微分方程法生成三维贴体网格,采用k-ε双方程模型模拟湍流黏性,分别采用EBU(eddy break-up)-Arrhenius燃烧模型、EDC(eddy dissipation concept)燃烧模型以及二阶矩(second-order-moment,简称SOM)燃烧模型模拟化学反应速率,在非交错网格下,采用欧拉-拉格朗日方法模拟气液两相喷雾燃烧过程,气液之间相互耦合采用PSIC(particle-source-in-cell)算法求解.数值分析不同湍流燃烧模型对折流燃烧室两相喷雾燃烧流场的影响,计算结果与试验数据比较,表明采用不同湍流燃烧模型所得的两相喷雾燃烧流场有所不同,其中SOM燃烧模型和EBU燃烧模型都能较好地数值模拟折流燃烧室两相喷雾燃烧过程.
- 任意曲线坐标系 /
- 折流燃烧室 /
- 两相喷雾燃烧 /
- 欧拉-拉格朗日方法 /
- 燃烧模型
Abstract: In arbitrary curvilinear coordinates,numerical investigations of three-dimensional two-phase spray combustion flow fields for a slinger annular combustor were carried out.Three-dimensional body-fitted grids were generated by TTM (Thompson-Thames-Martin) method,k-ε model was used to simulate the turbulent viscosity;EBU (eddy break-up ) -Arrhenius combustion model,EDC (eddy dissipation concept) combustion model and SOM (second-order-moment) combustion model were applied to predict turbulent combustion rate.The gas and liquid phases were treated with Eulerian-Lagrangian method and the gas-liquid coupling was calculated with PSIC (particle-source-in-cell) arithmetic.The effects of different combustion models on two-phase spray combustion flow fields were studied.The numerical results are in good agreement with the experimental data.It shows that all of the combustion models are used to simulate the combustion process in slinger annular combustor,but the SOM combustion model and EBU combustion model are better than EDC combustion model for simulation of two-phase spray combustion flow fields in the slinger annular combustor.
- arbitrary curvilinear coordinates /
- slinger annular combustor /
- two-phase spray combustion /
- Eulerian-Lagrangian method /
- combustion model

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参考文献(12)

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