摘要
本文用颗粒轨道模型对流场复杂的二维大速差射流燃烧室内煤粉燃烧进行了数值模拟,给出了包括热态气相流场、温度场和浓度场等在内的各种气相场分布,同时也给出颗粒轨道及其速度、温度、质量等的变化。模拟结果再次揭示了该燃烧室内流动和燃烧的主要物理特征,并着重指出煤粉颗粒在燃烧室内的行为对火焰稳定的重要影响。
A trajectory model of particle phase is used to calculate pulverized-coal combustion in an axisymmetric prechamber of coflowing jets with large velocity difference. The gas velocity, temperature, species concentration distrubtions, the particle trajectories and the velocity, temperature and mass variations along their trajectories are obtained, The results show some distinguishing features of the flow, mixing and combustion in the combustor. The behaviour of the particles has a pronounced effect on the flame stabilization.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1989年第1期109-113,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金
