计算物理 ›› 1995, Vol. 12 ›› Issue (2): 270-274.

• 论文 • 上一篇    下一篇

气固两相流动与燃烧数值计算中两相耦合迭代收敛方法的研究

阎维平1, 徐通模2, 许晋源2   

  1. 1. 华北电力学院, 保定 071003;
    2. 西安交通大学, 西安 710049
  • 收稿日期:1993-12-26 修回日期:1994-11-03 出版日期:1995-06-25 发布日期:1995-06-25

INVESTIGATIONS OF ITERATIVE METHOD OF THE TWO-PHASE COUPLING IN NUMERICAL COMPUTATION OF GAS-SOLID FLOW AND COMBUSTION

Yan Weiping1, Xu Tongmo2, Xu Jinyuan2   

  1. 1. North China Institute of Electric Power, Baoding 07003;
    2. Xi'an Jiaotong University, Xian 710049
  • Received:1993-12-26 Revised:1994-11-03 Online:1995-06-25 Published:1995-06-25

摘要: 作者在采用分散颗粒群轨道模型对煤粉气流的燃烧过程进行的数值计算中,对气固两相间的能量及质量的耦合迭代原理及收敛过程进行了分析研究,提出了一种能促进和加速两相耦合收敛的迭代计算方法,成功地克服了在较高煤粉浓度燃烧计算中两相耦合迭代不收敛或发散的问题.

关键词: 数值计算, 煤粉燃烧, 迭代方法

Abstract: Numerical computation to predict the pulverized-coal diffusion flame using Lagrangian treatment of the gas-solid flow and combustion is implemented. The authors analyse and discuss the gas-particle momemtum, mass and energy transfer processes. A modified scheme for existing computation model is proposed by the authors, which is effective in promoting two phase coupling process and can overcome divergency in computation for high pulverized-coal concentration combustion.

Key words: numerical computation, pulverized coal combustion, iterative method

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