| 多孔介质中含溶解反应的互溶驱替过程格子Boltzmann研究 |
| |
| 引用本文： | 刘高洁,邵子宇,娄钦.多孔介质中含溶解反应的互溶驱替过程格子Boltzmann研究[J].物理学报,2022(5):209-220. |
| |
| 作者姓名： | 刘高洁 邵子宇 娄钦 |
| |
| 作者单位： | 上海理工大学能源与动力工程学院;上海理工大学 |
| |
| 基金项目： | 国家自然科学基金(批准号:51806142);上海青年科技英才扬帆计划(批准号:18YF1418000);上海市自然科学基金(批准号:19ZR1435700)资助的课题。 |
| |
| 摘 要： | 采用格子Boltzmann方法研究了孔隙尺度下多孔介质内含流固溶解反应的互溶驱替过程,重点研究了被驱替流体与驱替流体黏性差异较大的情况下,溶解反应引起的多孔介质内部结构变化对驱替过程的影响;定量分析了不同达姆科勒数及佩克莱数下多孔介质孔隙率和驱替过程驱替效率随时间的演变.研究结果表明:达姆科勒数较大时,溶解反应的发生会在多孔介质内部生成虫洞,导致一部分被驱替流体不能被波及,驱替流体沿虫洞离开多孔介质,造成驱替效率的减少.在此基础上,随着达姆科勒数的增大,孔隙率变化越大,生成的虫洞越宽,最终驱替效率变大,但仍小于无溶解反应时的驱替效率;随着佩克莱数的增大,指进增长速度越快,孔隙率变化越小,驱替效率越小.
|
| 关 键 词： | 多孔介质 互溶驱替 溶解反应 格子Boltzmann方法 |
A lattice Boltzmann study of miscible displacement containing dissolution reaction in porous medium |
| |
| Liu Gao-Jie,Shao Zi-Yu,Lou Qin.A lattice Boltzmann study of miscible displacement containing dissolution reaction in porous medium[J].Acta Physica Sinica,2022(5):209-220. |
| |
| Authors: | Liu Gao-Jie Shao Zi-Yu Lou Qin |
| |
| Affiliation: | (School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China) |
| |
| Abstract: | The miscible displacement with fluid-solid dissolution reaction in a porous medium is a typical process in many industrial applications,such as underground-water pollution decontamination,and oil recovery or geological sequestration of carbon dioxide.It is a significant problem in engineering and physics applications.As is well known,the dissolution reaction can change the structure of the porous medium,which will have a great influence on the miscible displacement process.However,the relationship between the displacement process and the dissolution reaction in a porous medium has not been fully studied.In this study,the miscible displacement with dissolution in a porous medium is simulated by a lattice Boltzmann method(LBM).The study focuses on the influence of the internal structure change on the displacement process,and the further quantitative analyzing of the changes of the porosity and displacement efficiency by changing the Damkohler number(Da)and the Pèlcet number(Pe).The results show that when Da is large enough,the dissolution reaction will generate a few wormholes in the porous medium,and the displacement fluid will leave the porous medium along the wormholes,resulting in the decrease of the displacement efficiency.As Da increases,the reaction goes faster,the rate of change in porosity increases,and the wormholes become wider,thereby indeed yielding a larger displacement efficiency.With the increase of Pe,the fingerings develop faster,the rate of change in porosity decreases,and the displacement efficiency decreases as well. |
| |
| Keywords: | porous medium miscible displacement dissolution reaction lattice Boltzmann method |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《物理学报》浏览原始摘要信息 |
|
点击此处可从《物理学报》下载免费的PDF全文 |
|
