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題名 | 協和#1機低壓汽機葉片三維流場分析=3-D Blade Flow Analysis of the Hsieh-Ho No.1 Low Pressure Steam Turbine |
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作者 | 楊瑞珍; 駱文傑; 吳政庭; 陳景林; 鍾年勉; 唐文元; 李國楨; | 書刊名 | 台電工程月刊 |
卷期 | 587 1997.07[民86.07] |
頁次 | 頁29-45 |
分類號 | 448.13 |
關鍵詞 | 計算流力; 滑輪流力; 負荷; 馬蹄型渦旋; Computational fluid dynamics; CFD; Turbomachinery fluid dynamics; Load; Horseshoe vortex; |
語文 | 中文(Chinese) |
中文摘要 | 汽渦輪葉片根部偶爾發現有龜裂之現象,而造成此現象可能原因在於靜子與轉子 之間有非定長的流體交互作用。此交互作用產生非定常Excitation froces,此 非定常負荷是造成葉片振動,共振或疲勞之主因。本文提出用計算流利之方法來 模擬三維葉片流場,主要目標在於分析臺灣電力公司協和發電廠#1機低壓汽機 L-1 動葉片支流場,包括葉片所受之負荷,所得結果可提供結構力學分析之用。 |
英文摘要 | The blade crack near fir tree location occurs occasionally in steam turbines. A possible reason of this blade failure is due to unsteady flow interaction between stator and rotor. The unsteady flow interaction may generate excitation forces at nozzle passing frequency and its harmonics. This interaction is generally responsible for forced vibration, resonance and fatigue failure. This study is to use computational fluid dynamics (CFD) technique to simulate the 3-D turbine flowfields. The goal is to compute the loading of the turbine blades used by the Taiwan Power Company. The computed results may provide information for structural analysis. |
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