...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Transport in Porous Media >Horizontal Redistribution of Two Fluid Phases in a Porous Medium: Experimental Investigations
【24h】

Horizontal Redistribution of Two Fluid Phases in a Porous Medium: Experimental Investigations

机译：多孔介质中两个流体相的水平再分布：实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Classical models for flow and transport processes in porous media employ the so-called extended Darcy's Law. Originally, it was proposed empirically for one-dimensional isothermal flow of an incompressible fluid in a rigid, homogeneous, and isotropic porous medium. Nowadays, the extended Darcy's Law is used for highly complex situations like non-isothermal, multi-phase and multi-component flow and transport, without introducing any additional driving forces. In this work, an alternative approach by Hassanizadeh and Gray identifying additional driving forces were tested in an experimental setup for horizontal redistribution of two fluid phases with an initial saturation discontinuity. Analytical and numerical solutions based on traditional models predict that the saturation discontinuity will persist, but a uniform saturation distribution will be established in each subdomain after an infinite amount of time. The pressure field, however, is predicted to be continuous throughout the domain at all times and is expected to become uniform when there is no flow. In our experiments, we also find that the saturation discontinuity persists. But, gradients in both saturation and pressure remain in both subdomains even when the flow of fluids stops. This indicates that the identified additional driving forces present in the truly extended Darcy's Law are potentially significant.
机译：多孔介质中流动和传输过程的经典模型采用了所谓的扩展达西定律。最初，是根据经验提出的，用于刚性，均质，各向同性的多孔介质中不可压缩流体的一维等温流动。如今，扩展的达西定律可用于高度复杂的情况，例如非等温，多相和多组分流动和运输，而无需引入任何其他驱动力。在这项工作中，由Hassanizadeh和Gray确定了另一种驱动力的替代方法，在实验设置中进行了测试，该方法用于初始饱和不连续的两个流体相的水平再分布。基于传统模型的分析和数值解决方案预测饱和不连续性将持续存在，但是在无限长的时间后，每个子域中将建立均匀的饱和度分布。但是，压力场预计在整个时间段内都是连续的，并且在没有流量的情况下有望变得均匀。在我们的实验中，我们还发现饱和度不连续性仍然存在。但是，即使流体停止流动，饱和度和压力的梯度仍保留在两个子域中。这表明在真正扩展的达西定律中存在的已确定的其他驱动力可能很重要。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号