| 浓度前沿在驱替过程中的发展和演变 |
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| 引用本文： | 李希,郭尚平. 浓度前沿在驱替过程中的发展和演变[J]. 石油学报, 1986, 7(4): 53-60. DOI: 10.7623/syxb198604007 |
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| 作者姓名： | 李希 郭尚平 |
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| 作者单位： | 中国科学院兰州渗流力学研究室 |
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| 摘 要： | 本文从多孔介质中化学剂运移问题的数学模型出发,分析比较了对流-弥散-非线性吸附-溶解诸因素的相对强弱及其影响,说明了溶质运移过程的运动边界层特征。作者选择弥散数作为特征小参数,用奇异摄动法求得了溶质浓度在全流场的渐进解析分布,着重考察了各种因素对浓度前沿推进过程的影响。
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| 收稿时间： | 1985-12-17 |
DEVELOPMENT AND EVOLUTION OF CONCENTRATION FRONT IN DISPLACEMENT PROCESS |
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| Li Xi,Guo Shangping. DEVELOPMENT AND EVOLUTION OF CONCENTRATION FRONT IN DISPLACEMENT PROCESS[J]. Acta Petrolei Sinica, 1986, 7(4): 53-60. DOI: 10.7623/syxb198604007 |
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| Authors: | Li Xi Guo Shangping |
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| Affiliation: | Lanzhou Research Division of Mechanics of Flow through Porous Media, Academia Sinica |
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| Abstract: | In this paper, we analysed the influences of convection, dispersion, nonlinear adsorption, and dissolution, according to a mathematical model describing the transport of a chemical reagent in porous media, and elucidated the characteristics of moving boundary layer in the solute transport process. Then, we chose the dispersion number as a characteristic minor parameter, solved the problem and obtained the asymptotic analytical solutions of solute concentration by singular perturbation method, and investigated the influences of various factors on the advancing of concentration front. |
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