| 土壤入渗气液两相流的变化过程 |
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| 引用本文： | 李援农,刘书榜.土壤入渗气液两相流的变化过程[J].西北农林科技大学学报(社会科学版),2002,30(6):177-180. |
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| 作者姓名： | 李援农 刘书榜 |
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| 作者单位： | 1. 西北农林科技大学,水利与建筑工程学院,陕西,杨陵,712100
2. 陕西省丹风县水利局,陕西,丹风,726102 |
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| 基金项目： | 国家自然科学基金资助项目(40071057) |
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| 摘 要： | 根据室内及田间恒定土壤空气压力、正常积水入渗过程中湿润层土壤含水量的变化,观察了禁锢土壤空气压力及入渗水流的变化过程。结果表明,入渗过程中禁锢土壤空气压力变化过程可分为急剧变化、缓慢变化和稳定变化3个阶段,得出稳定入渗阶段的平均截面含水率分别为0.97和0.50L/L。
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| 关 键 词： | 积水入渗 气液两相流 土壤空气压力 截面含水率 |
| 文章编号： | 1671-9387(2002)06-0177-04 |
| 收稿时间： | 2001/11/2 0:00:00 |
| 修稿时间： | 2001年11月2日 |
Changes of two soil phases in the process of infiltration |
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| Institution: | LI Yuan nong1,LIU Shu bang2(1 College of Hydraulic and Architectural Engineering,Northwest Sci Tech University and Forestry,Yangling,Shaanxi 712100,China;2 Water Conservancy Office of Danfeng County,Danfeng,Shaanxi 726102,China) |
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| Abstract: | According to the variation of the water volume in the wet layer which exists in the stable soil air pressure infiltration and the normal infiltration indoors and outdoors,we observed the process of the soil air entrapment pressure and the infiltration water flow.Studies have showed that the soil air pressure content of the werred soil can be divided into three stages:slow and stable stages.And we have concluded that the section water content in the stable infiltration is 0.97 or 0.50 L/L. |
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| Keywords: | water-accumulated infiltration liquid and air phases soil air pressure section water content |
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