Multidimensional Flow and Transport in Heterogeneous Unsaturated Porous Media: Theory and Experiments

非均质不饱和多孔介质中的多维流动和输运：理论与实验

• 批准号: 9313260
• 负责人: Angelos Protopapas
• 金额: --
• 依托单位: Polytechnic University of New York
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-06-01 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9313260&HistoricalAwards=false
• 关键词: Multidimensional; Flow; Transport; Heterogeneous; Unsaturated

9313260 Protopapas This is a award to provide support for research, the objective of which is to advance the macroscopic description of flow and transport in heterogeneous soils, improve knowledge of the microscale mechanism of fluid infiltration into soil, obtain a better understanding than now exists of the effect that small particulates have on field-scale fluid behavior in soil, and accounting for randomness of the hydraulic properties of soil in numerical models that are intended to describe flow and transport properties of porous media. The investigator plans to address these issues both theoretically and experimentally by developing new experimental techniques for analyzing pore scale infiltration, validation of existing the existing theory regarding unsteady infiltration in heterogeneous soils, and improvement of the models that result from additional theoretical effort and experimental validation. Results of this project are expected to be utilized in engineering design of water and wastewater management systems that involve seepage from surface locations through soil and into groundwater aquifers. The work is also expected to develop new laboratory methods and techniques for study of fluid behavior in heterogeneous porous media, thus assisting in applying resultant models in the engineering design of fluid management systems such as artificial wetlands for wastewater treatment and cutoff walls for containment of water, wastewater or hazardous wastes.

9313260 Protopapas这是一个为研究提供支持的奖项，其目的是促进对非均质土壤中流动和运输的宏观描述，提高对流体渗透到土壤中的微观机制的认识，获得比现在更好的理解，即小颗粒对土壤中场尺度流体行为的影响，在描述多孔介质流动和输运特性的数值模型中考虑了土壤水力特性的随机性。研究人员计划通过开发新的实验技术来分析孔隙尺度入渗，验证现有的非均质土壤中的非稳定入渗理论，并改进额外的理论努力和实验验证所产生的模型，从而在理论和实验上解决这些问题。该项目的成果预计将用于水和废水管理系统的工程设计，这些系统涉及从地表通过土壤渗透到地下蓄水层。这项工作还有望开发新的实验室方法和技术，用于研究非均质多孔介质中的流体行为，从而有助于将所得模型应用于流体管理系统的工程设计中，例如用于废水处理的人工湿地和用于容纳水，废水或危险废物的防渗墙。