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題名 | 數值模擬蝴蝶閥在開啟過程之流動特性探討=Numerical Analysis of Flow Characteristic for Butterfly Valve in Opening |
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作者 | 張釗; | 書刊名 | 中華科技大學學報 |
卷期 | 58 2014.01[民103.01] |
頁次 | 頁81-90 |
分類號 | 440.137 |
關鍵詞 | 蝴蝶閥; 數值模擬計算; 流動係數; 水動力矩係數; |
語文 | 中文(Chinese) |
中文摘要 | 本研究係基於ANSYS-CFX的軟體架構下,進行三維流體的數值模擬計算,藉以進一步觀察流體的流動型態,探究圓管內蝴蝶閥門在不同開度和進口速度的條件下所衍生的流動係數值(Flow Coefficient)與水動力矩係數值(Hydrodynamic Torque Coefficient)的變化,並對照實驗數據;利用量測閥門之流動係數和水動力矩係數之實驗數據,可印證數值模擬計算的有效準確性,本研究成果不僅可提供產業界理解閥門在不同的開度的水動力矩特性,即可被作為蝴蝶閥開啟時扭力設計的模擬判斷依據。 |
英文摘要 | In this paper, three-dimensional numerical simulations by commercial code CFX were conducted to simulate the flow patterns and to acquire flow coefficient and hydrodynamic torque coefficient when butterfly valve opened in different degrees and incoming flow velocity where used in a piping system. By comparisons, a group of experimental data is used to compare with the data obtained by CFX simulation in order to investigate the validity of numerical method. Simulating results did not only give access to realize the process of the valve flows in different opening degrees, but also was contributed to determine the torque characteristics of a valve by an simulating method. |
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