计算物理 ›› 1996, Vol. 13 ›› Issue (3): 269-275.

• 论文 • 上一篇    下一篇

用颗粒相连续介质-轨道模型模拟大速差射流煤粉燃烧

张健, 周力行   

  1. 清华大学工程力学系, 北京 100084
  • 收稿日期:1994-11-18 出版日期:1996-09-25 发布日期:1996-09-25

SIMULATION OF PULVERIZED COAL COMBUSTION IN A COMBUSTIOR OF LARGE VELOCITY DIFFERENCE JETS BY PARTICLE CONTINUUM-TRAJECTORY MODEL

Zhang Jian, Zhou Lixing   

  1. Department of Engineering Mechanics, Tsinghua University, Beijing 100084
  • Received:1994-11-18 Online:1996-09-25 Published:1996-09-25

摘要: 建立并发展了基于颗粒相连续介质-轨道模型的煤粉燃烧数学模型,并相应发展了一种有反应两相流的总体选代算法,自行编制了计算二维湍回流有反应两相流的通用LEAGAP程序。利用该程序对目前在煤粉锅炉上广泛应用的大速差射流燃烧室内的煤粉气-固两相流燃烧进行了数值模拟

关键词: 气-固两相流, 煤粉燃烧, 颗粒相连续介质-轨道模型, 大速差射流燃烧室, 数值模拟

Abstract: A mathematical model of pulverized coal combustion is formulated and developed based on a particle continuum-trajectory model.An overall iterative solution procedure for reactive two-phase flows is also proposed.The corresponding CCVC computer code has been developed for calculating two-dimensional, recirculating,reactive,two-phase turbulent flows.It is utilized to numerically simulate the pulverized coal combustion in a combustor of large velocity difference jets which at plesent is widely used in coal fired boilers.

Key words: gas particle flow, pulverized coal combustion, particle continuum trajectory model, large velocity difference jet combustor, numerical simulation

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