| 用有限解析差分格式数值求解化学输运方程 |
| |
| 引用本文： | 刘慈群,魏育生.用有限解析差分格式数值求解化学输运方程[J].力学学报,1988(4). |
| |
| 作者姓名： | 刘慈群 魏育生 |
| |
| 作者单位： | 中国科学院渗流力学研究室
(刘慈群)，中国科学院渗流力学研究室(魏育生) |
| |
| 摘 要： | 本文用有限解析差分格式研究在多孔介质中化学输运问题的数值模型,系统地计算结果表明:1.有限解析差分格式能够消除数值弥散和伪振荡; 2.随着弥散数(Peclct数)的减小(增加),浓度突破曲线将延迟到达和形状变陡,最终趋近浓度对流曲线;3.当流速数增加后,非稳态吸附对浓度分布的影响趋近稳态吸附的影响。
|
| 关 键 词： | 化学输运 对流 弥散 吸附 有限解析差分法 |
NUMERICAL SOLUTIONS OF TRANSPORT EQUATIONS BY ANALYTICAL DIFFERENCE SCHEME |
| |
| Liu Ciqun and Wei Yusheng.NUMERICAL SOLUTIONS OF TRANSPORT EQUATIONS BY ANALYTICAL DIFFERENCE SCHEME[J].chinese journal of theoretical and applied mechanics,1988(4). |
| |
| Authors: | Liu Ciqun and Wei Yusheng |
| |
| Abstract: | This paper studies numerical model of chemical transport in porous media by using analytical difference scheme. The systematical calculated results manifest: 1. analytical difference scheme can dispel numerical dispersions and overshoot; 2. decreasing dispersion group delays breakthrough and sharpens the effluent curves; 3. the chemical adsorption ap-poraches the equilibrium condition at larger flow rate group. |
| |
| Keywords: | chemical transport convection dispersion adsorption finite analytical dif-ference method |
| 本文献已被 CNKI 等数据库收录！ |
