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題名 | 水平方向一維非飽和土壤水份擴散之漸近解=An Asymptotic Solution of One-dimensional Horizontal Moisture Diffusion in Unsaturated Soil |
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作者 | 葉一隆; 王裕民; Yeh, Yi-lung; Wang, Yi-min; |
期刊 | 國立屏東技術學院學報 |
出版日期 | 19960300 |
卷期 | 5:1 1996.03[民85.03] |
頁次 | 頁37-43 |
分類號 | 434.222 |
語文 | chi |
關鍵詞 | 微擾法; 土壤水份擴散; 非飽和土壤; Perturbation method; Soil moisture diffusion; Unsaturated soil; |
中文摘要 | 水份於非飽和土壤傳輸,因水力傳導係數隨土壤含水量變化,描述此現象之控制 方程 式為一非線性偏微分方程式。本文考慮一維水平土壤水份之擴散,並以微擾法求得其漸近 解,且利用施嘉昌與何信賢(1992)所得之實驗結果之資料來計算非飽和土壤水份傳輸過程.. |
英文摘要 | The flow of water in unsaturated soil can be described as a non-linear partial differential equation. The equation cannot find exact solution because the conductivity coefficient is dependent on the water content of soil. In this paper, the case of one-dimensional horizontal flow of water is considered. The asymptotic solutions are obtained by perturbation method. The water transport in unsaturated soil is computed by the asymptotic solutions that experimental data was taken by Shih and Ho (1992). In addition, the effects of soil water movement by the parameters.... |
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