计算物理 ›› 1997, Vol. 14 ›› Issue (S1): 595-596,594.

• 论文 • 上一篇    下一篇

网格划分对四周切向煤粉炉流场计算的影响

汪箭, 刘团结, 范维澄   

  1. 中国科学技术大学火灾科学国家重点实验室, 合肥 230026
  • 收稿日期:1997-03-03 修回日期:1997-05-07 出版日期:1997-12-25 发布日期:1997-12-25

NUMERICAL CALCULATION OF FLOW FIELDS IN PULVERIZED COAL BOILER

Wang Jian, Liu Tuanjie, Fan Weicheng   

  1. State Key Lab. of Fire Science, University of Science and Technology of China, Hefei 230026
  • Received:1997-03-03 Revised:1997-05-07 Online:1997-12-25 Published:1997-12-25

摘要: 通过选用不同的网格划分方法,对四周切向煤粉炉流场进行数值计算。若选用常规的网格划分方法计算,虚假扩散的影响非常严重,势必造成计算结果较大的偏差;同时,给出适当的网格划分,以及相应合理的计算结果。

关键词: 数值计算, 虚假扩散, 煤粉锅炉

Abstract: By applying different schemes of meshes, the calculations of flow fields in pulverized coal boilers are discussed.The results show that false diffusion may be tremendous when using meshes generated in a normal method.Consequently, the error of results is very high.Meanwhile, acceptable results may be obtained when using properly generated meshes.

Key words: Numerical calculation, false diffusion, coal boiler

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