摘要
采用k ε双方程模型和概率密度函数(PDF)相结合的办法,研究受限条件下的湍流射流扩散火焰,着重考虑受限条件下固体壁面、压力梯度等因素对速度场和标量场求解的影响,并在此基础上对两个不同尺寸的受限湍流燃烧场进行计算,分别研究了受限湍流射流扩散火焰的流场结构、火焰结构和火焰形状.最后给出结果,定性分析,并得出结论.
A confined turbulent jet diffusion flame is studied using the probability density function(PDF) approach together with the kε two\|equation model. The effect of solid wall and pressure gradient on the velocity and scalar is mainly concerned with. Then two confined turbulent combustion fields with different dimensions are simulated, of which the fluid structure, flame structure and flame shape are studied. In the end, the result is analyzed and conclusions are made.
出处
《计算物理》
CSCD
北大核心
2003年第1期59-64,共6页
Chinese Journal of Computational Physics
基金
华中理工大学煤燃烧国家重点实验室973课题"燃煤污染防治的基础研究"子课题资助项目
