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| 題 名 | Stochastic Modeling of Sediment Infiltration into Porous Media Phase Ⅱ: Experimental Results and Application=泥砂滲入孔隙介質之序率模式研究(2--實驗結果與應用部份 |
|---|---|
| 作 者 | 吳富春; | 書刊名 | 農業工程學報 |
| 卷 期 | 40:3 1994.09[民83.09] |
| 頁 次 | 頁85-102+27 |
| 分類號 | 434.287 |
| 關鍵詞 | 序率模式; 泥砂入滲; 孔隙介質; Stochastic model; Sediment infiltration; Porous media; |
| 語 文 | 英文(English) |
| 中文摘要 | 由於泥砂滲入孔隙介質之過程是一種非恆定、非均勻之過程,一名為非均質波益桑程序模式之序率模式適合用以描述具這種特性之過程。然而在應用這種序率模式時,須確知兩個參函數λ₁和λ₂。λ₁和λ₂之物理意義分別為平均停息時間之倒數和平均步長之倒數如果將泥砂顆粒之移動考慮成一系列之交替步移與停息。本研究之第一部份及推演決定兩個參函數λ₁和λ₂之理論。根據這理論,本研究之第二部份乃以實驗方法決定λ₁和λ₂,並將所得之結果加以討論及分析以供進一步之應用。 |
| 英文摘要 | A stochastic model, non-homogeneous Poisson Process model, is adopted to describe the physical process of sediment particles infiltration into the porous media because of this model's suitability for the unsteady and non-uniform nature of the sediment infiltration process as well as the random behavior of the sediment particles within the porous matrix. Two parameters of this model, λ₁ and λ₂, are needed for stochastic modeling of this process. Physically, λ₁ and λ₂ are two intensity functions representing the inverse of the average rest period and the inverse of the average step length if the movement of the sediment particles is considered as a series of alternate step and rest. In phase I of this study, the theoretical bases for determination of λ₁ and λ₂ are presented. In phase II, an experimental study based on the theories from phase I is conducted to evaluate λ₁ and λ₂. The experimental results are discussed and analyzed for further application. |
本系統中英文摘要資訊取自各篇刊載內容。