摘要
研究了煤炭地下气化流体非线性渗流运动特征 .在模型试验的基础上 ,通过对气化发生炉体内煤层燃烧气化过程中渗流场分布和变化规律的分析 ,建立了三维非稳定非线性渗流数学模型 .阐述了主要模型参数的选取方法 ,用有限单元法对数学模型进行了求解 ,并对模拟计算结果进行了分析和讨论 .计算值和实测值基本相符合 。
The non linear seepage flow movement in underground coal gasification(UCG) was researched. In the model experiment, by analyzing the distribution and variation of seepage flow field in gasification stove, the mathematics model for 3 D non linear unstable seepage was established. The method of determining the main parameters of the model was explained. Solutions of the model were found with the finite element method. And the calculated values are basically in accordance with the measured ones, indicating that the model is reliable.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2000年第5期528-531,共4页
Journal of China University of Mining & Technology
基金
国家自然科学基金资助项目!(5 990 6 0 14 )
关键词
煤炭
地下气化
非线性
数学模型
三维渗流
非稳态
UCG
three dimensions
non linearity
seepage folw field
mathematics model€
