| 任尚岗,张振华,杨润亚,潘英华,谭国强,李陆生,朱敏.Philip公式在三维入渗及参数测算中的应用[J].干旱地区农业研究,2011,29(5):192~196 |
| Philip公式在三维入渗及参数测算中的应用 |
| Application of Philip Formula in the three-dimensional infiltration and calculating parameter |
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| DOI：10.7606/j.issn.1000-7601.2011.05.35 |
| 中文关键词: Philip公式 Philip-Dunne入渗 单环入渗 |
| 英文关键词:Philip formula Philip-Dunne infiltration single-ring infiltration |
| 基金项目:国家自然科学基金（50609022，40801100）； 山东省教育厅项目（J07YF16） |
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| 中文摘要: |
| 基于Philip公式，分析了Philip Dunne入渗和单环入渗的三维动态过程，讨论了公式中的
参数A与土壤饱和导水率ks的关系并据此建立了ks求算模型。结果表明：Philip公式在三维入渗的动态过程分析中仍然适用，其参数A与ks存在显著的幂级数关系，
入渗实验方法及仪器规格会影响ks与A间的拟合关系及其精度；Philip公式在分析Philip-Dunne入渗时精度比单环入渗高；基于参数A建立的ks求算模型在两种三维入渗中预测的ks值与实测值相比误差保持在5%以内，具有一定的实用价值。 |
| 英文摘要: |
| Based on Philip formula, three-dimensional dynamic process of Philip-Dunne and sing-ring infiltration were studied, and also the relationship between of parameter A in Philip formula and saturated hydrau
lic ks as well as computing ks model were explored. The results show is applicable in the analysis of three-dimensional infiltration, and there is a positive power function, affected by experimental methods and it's equipment specifications, relationship between ks and A; The accuracy of Philip formula used in Philip-Dunne infiltration was higher than in singe-ring infiltration; Compared with actual measured ks in infiltration experiments, the forecast ks based on computing model has a overall error below 5%, and then the simply model can be used to estimate infiltration parameters. |
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