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題 名 | Saltwater Upconing due to Freshwater Pumping=上層抽取淡水造成下層鹽水上場 |
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作 者 | 林榮川; 蔡丁貴; 徐年盛; | 書刊名 | Proceedings of the National Science Council : Part A, Physical Science and Engineering |
卷 期 | 23:2 1999.03[民88.03] |
頁 次 | 頁248-258 |
分類號 | 443 |
關鍵詞 | 淡水; 鹽水; 最佳抽水量方案; Upconing; Unsteady analytical solution; Unconfined aquifer; Saltwater and freshwater interface; |
語 文 | 英文(English) |
中文摘要 | 假設含水層為均質且等向性,應用流量勢能與非線性交界面邊界的擾動法以建立 非穩態擬三維軸對稱非拘限含水層雙相液體交界面的解析解,作為評估沿海區域最佳抽水量 方案之用。本解析解亦可廷伸應用至均質異向性之孔隙介質,由於解析解為正無窮積分形式, 本文應用高斯積分來進行數值計算。經與數值計算和電阻類比試驗結果比較,本文之結果甚 為良好。 |
英文摘要 | Assuming an aquifer is homogenous and isotropic, discharge potentials and perturbation of the nonlinear interface boundaries are employed to derive a quasi-three dimensional and unsteady-state analytical solution for interfacial upconing of two liquids in an unconfined aquifer. To investigate the effects of pumpage, the position of the interface between the two liquids can be determined from the analytical solution. The present analytical solution of an isotropic aquifer is also extended to anisotropic cases. The analytical solution is a positive infinite integral type solution. Gauss-quadrature integration is used in the numerical computations. The present results of the interface upconing are verified through comparison with numerical solutions and experimental results. Very good agreement among these results is observed. |
本系統中英文摘要資訊取自各篇刊載內容。