Kinematic Wave Formulation for Flow Through Macroporous Soil

大孔土壤流动的运动波公式

• 批准号: 9123563
• 负责人: Carol Miller
• 金额: $ 13.61万
• 依托单位: Wayne State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-06-01 至 1995-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9123563&HistoricalAwards=false
• 关键词: Kinematic; Wave; Formulation; Flow; Through

The objective of this study is to investigate infiltration through a soil matrix possessing dual porosity. The duality is attributed to the existence of micropores at a length scale consistent with the size of individual soil grains, and macropores of a size significantly larger than an individual soil grain. Primary attention is focused on the macropores, as infiltration through a homogeneous soil with micropores has already been solved with some success. The project results will impact several fields of soil hydraulics, including agricultural applications, groundwater recharge, landfill cover design, and contaminant transport in the vadose zone.

本研究的目的是调查渗透通过 具有双重孔隙的土壤基质。二元性是 归因于在长度尺度上微孔的存在 与单个土壤颗粒和大孔隙的大小一致 比单个土壤颗粒大得多。 主要注意力集中在大孔隙上，因为渗透 通过具有微孔的均质土壤已经解决了 取得了一些成功。项目成果将影响多个领域 土壤水力学，包括农业应用， 地下水补给、填埋场覆盖设计和污染物 包气带中的运输。