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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/39343


    Title: 三維對流擴散方程式之數值解法
    Authors: 陳富宏;江旭程
    Contributors: 淡江大學水資源及環境工程學系
    Date: 1988-05-27
    Issue Date: 2010-01-11 16:54:35 (UTC+8)
    Publisher: 臺中市:中興大學
    Abstract: 本文討論如何利用數值方法求解三維對流擴散方程式,以決定規則格點上濃度揚之分佈。此一研究將三維問題,利用分段步驟法( fractional step method )改為三個方向之一維對流擴散方程式,並以泰勒展開式進行時間之離散,以葛勒金法( Galerkin Method )進行空間之離散,如此即可依序求解三個一維對流攝散方程式,以求出不同時間三維濃度場之變化情形。
    論文中將數值解與解析解比較,探討其準確性,並與前人結果比較。由一維和二維問題之比較顯示此種方法較其他方法(如Price , Upwind, SHASTA 等)準確,應用至三維之問題,也可迅速地求出單確的濃度分佈。
    Relation: 第四屆水利工程研討會論文集=Proceedings of 4th conference on hydraulic engineering,頁439-450
    Appears in Collections:[Graduate Institute & Department of Water Resources and Environmental Engineering] Proceeding

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