【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．更多还原

【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.更多还原