摘要
本文采用３种不同的网格体系计算了四角切圆形式的炉膛内的流场分布，对其进行了对比分析。结果表明，伪扩散现象对四角炉膛流场的数值计算有很大的影响；采用与流动方向较一致的网格体系能有效地减小伪扩散。
Three different grid systems are used for numerical simulation of the flow field in a tangential firing furnace. The results are compared and discussed. It is shown that the pseudo diffusion greatly influences the calculated results of the flow field in a tangential firing furnace. The pseudo diffusion can be effectively reduced by using a grid system which is consistent with the flow direction.
出处
《燃烧科学与技术》
EI
CAS
CSCD
1997年第2期113-119,共7页
Journal of Combustion Science and Technology
关键词
伪扩散
数值模拟
切向燃烧
网格
煤粉锅炉
Pseudo diffusion, Numerical simulation, Tangential firing, Grid system
