湖南大学学报（自然科学版）2001，Vol.28Issue(2)：100-106,7.
煤粉炉内扩散火焰关于大尺度涡的“砂轮”效应初探
Discussion on Grinding Wheel Effect of Diffusion Flame
to Large Scale Eddy in Pulverized Coal Boiler
龚光彩 1周萍 2梅炽2
作者信息
- 1. 湖南大学土木工程学院,中南大学应用物理与热能工程系,
- 2. 中南大学应用物理与热能工程系,
- 折叠
摘要
Abstract
This paper takes pulverized coal boiler with jets of tangent direction of four corner on furnace wall as an object,and studies the combustion process of the pulverized coal boiler with CFX4.2 software by α-250 workstation.Researches find that there are some regular eddy-structure of approximate solid (rigid) eddy (vortex) and approximate free eddy (both of them are first eddy) and some second eddy on normal and cross sections(those are large scale eddy).This paper also points out that there are strong flame or local strong flame on friction location between one eddy and others,or eddy and wall of furnace,or eddy and jet of air.And this phenomenon is called as frinding wheel effect of the eddy.The phenomenon is analysed by the Zeldovich transformation,the generalized Reynolds analogy and the viscosity dissipation.关键词
大尺度涡/准强制涡/准自由涡/“砂轮”效应/局部马赫数分类
能源科技引用本文复制引用
龚光彩,周萍,梅炽..煤粉炉内扩散火焰关于大尺度涡的“砂轮”效应初探[J].湖南大学学报（自然科学版）,2001,28(2):100-106,7.
