blade clearance 中文意思是什麼
blade clearance
解釋
剪刃間隙-
The result of the calculation for tip clearance is reasonable when it is compared with theory. two ways are put forward for convention of dimension of the turbine components from high temperature to low one, which is related with tip clearance, a simple example is used to illuminate that the two ways are useful, using the method of design optimization, axiisk and a blade of a certain turhine is analysed, it showes that the method of design optimization is feasible to be used for convertion of dimension of the turbine components. finally, ansys software is used to analyzed the variation of tip clearance with the method of cyclic symmetry analysis when engine works under the conditions of temperature and rotational speed, am using a new method to deal with thermal contact resistance in the calculation
本文完善了計算渦輪葉尖間隙的簡化演算法程序，增加了程序的計算功能，並將其應用於某高壓渦輪進行葉尖間隙分析，所得結果與理論結果進行了對比，得出修改後的程序用於葉尖間隙計算是合理的；同時提出了與葉尖間隙相關的渦輪典型部件的冷、熱態的尺寸兩種換算方法，使用優化設計的方法進行了實例分析，說明了所提出的計算方法是可行的；最後應用ansys有限元軟體利用循環對稱的方法分析了某型發動機高壓渦輪在溫度場及離心力作用下的葉尖間隙在發動機工作過程中變化情況，並分析了計算中的接觸熱阻的處理問題。 -
The complex vortex system structure and shock wave system structure inside this rotor is obtained. wall flow patterns on the blade surface and hub surface are found out. the complex vortex system structure, such as horseshoe vortex, passage vortex, corner vortex and trailing vortex, and the interaction with shock wave system are researched. especially, the character of the tip clearance flow inside the rotor passage is revealed, and the interaction between shock wave and tip clearance flow near blade tip and the evolution of tip clearance flow are considered
給出了葉片表面及輪轂面上的壁面流型，分析並揭示了轉子葉道內的馬蹄渦、通道渦、角渦、尾渦等復雜渦系及其與激波的相互干涉；特別是，分析並揭示了轉子葉道內頂隙射流的特點，得到了頂隙附近激波與泄漏流動的干涉形態及泄漏流動的發展，並著重給出了其與激波的干涉形態。 -
The numerical simulation and experimental research made on the characteristics of the clearance cavitations in kaplan turbine are described herein ; in which the analysis mainly is concentrated on the characteristics of leakage - vortex caused by the flow of the clearance between blade tip and blade chamber, that occurs at the front - pressure side of the blade, and the intensity of the secondary - flow - vortex ; furthermore, the relationship in between the leakage - vortex, secondary flow vortex, cavitations and erosion are analyzed as well
摘要對軸流轉槳式水輪機輪緣間隙流動及空化特性進行數值模擬和試驗研究，重點分析輪緣間隙流動在正面頭部泄漏流動所引起的泄漏渦帶、二次流動的漩渦強度和空化特性，以及泄漏渦帶旋轉、二次流動的漩渦與空蝕和磨損之間的關系。 -
There is convenient impeller adjusting device. the clearance between housing and end of powder concentrator ' s blade also effects fineness. this patent technology is convenient to adjust the clearance
方便快捷的葉輪調整裝置。選粉機葉片端部與殼體的間隙大小也影響成品細度，本項專利技術使得調整該間隙大小方便快捷。 -
Abstract : a 3d numerical solution of transonic turbulent flowfield inside a compressor rotor is analyzed with a consideration of blade tip clearance
文摘:藉助于考慮葉片頂部間隙的壓氣機轉子內跨音速湍流流場的三維數值解，得到了該轉子流場中的復雜渦系與波系結構。 -
On the basis of above work, by using of " thin blade approximation ", a 3d viscous code had been developed to calculate flow field in rotor with tip clearance
在以上工作的基礎上，採用「薄葉片」假設，發展了一種用於計算考慮頂部間隙的壓氣機轉子內部流場的三維粘性程序。 -
Based on the comparison made among the characteristics of different kinds of the blade materials, the relationship between the material characters and the flow attack angle is explained, and then the breakage mechanism of the combined effects from both the clearance - cavitations and the erosion of leakage flow are expounded comprehensively
通過對不同材料的特性比較，解釋了材料特性與沖角之間的關系，綜合闡述了泄漏流動所引起葉片正面頭部空蝕與磨損聯合作用產生破壞的機理。 -
Development of rotating linear cascade facility for simulating blade tip clearance flow
模擬葉尖間隙流的轉動平面葉柵實驗方案 -
Blade tip clearance
葉尖與船體的間隙 -
The noise mechanism made by the fan tongue is further studied and the clearance between the tongue and the blade is invested experimentally, it is found that the gap of tongue is the key parameter to the noise and efficiency of the fan and the optimal gap is got based on the experiment
試驗研究了風機風舌的噪聲機理及不同風舌間隙對風機噪聲的影響規律，試驗結果表明選擇適當的風舌間隙是降低風機噪聲，提高風機效率的重要手段之一。
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