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頁籤選單縮合
題名 | 少量水流經連續雙彎管之暫態行為分析=Transient Flow for Small Amount of Water Passing Through Pipes with Double Consecutive Bends |
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作者姓名(中文) | 鄭偉盛; 蔡廷弘; | 書刊名 | 龍華科技大學學報 |
卷期 | 22 2007.03[民96.03] |
頁次 | 頁9-14 |
分類號 | 440.137 |
關鍵詞 | 非黏性; U型管; 簡諧運動; 震盪週期; 彎管; In-viscid; U-tube; Harmonic motion; Oscillation period; Bend; |
語文 | 中文(Chinese) |
中文摘要 | 洗手臺、馬桶都有連續彎管的設計,這樣子的設計,主要在於防止異味散發、害蟲入侵,但是這樣子的設計同時也增加水流的阻力,造成排水污的不順,但是由於它的計算域是變動的,一般的計算方法無法進行分析,因此從文獻上很難找到這種短時間內,水流過連續彎管的研究,所以就無法對洗手臺、馬桶的沖水效果進行改善,本文乃是嘗試將問題簡化,以非黏性之假設和質點動力學之方法,計算少量水流經二個180度連續彎管內的流動變化情形。首先針對U型管內水的震盪行為進行分析,以驗證研究方法之可行性與準確性,最後對連續雙180度彎管內之流動行為進行速度、加速度以及壓力分析,以做為將來進一步分析的基礎。 |
英文摘要 | Pipes under basins and toilets have consecutive-bend design. The reason for this design is to prevent invasion of unpleasing odor and unexpected bugs. Yet, this special design also creates problems such as clogging of pipes, increasing resistance to the flow etc. Although this happens so common in our daily life, it has not attracted much attention as far as research concern. This paper proposes a method to analyze flow behavior in such pipes with small amount of water passing through based on in-viscid assumption particle dynamics. The oscillation behavior in a U tube was first investigated to check the practicality and accuracy of the methods. Finally the transient behavior of the flow in the pipe with two 180-degree-turned consecutive bends was calculated for its variation in time of position, velocity, acceleration and pressure distribution inside the pipe when small amount of water passes through. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。