secondary clearance 中文意思是什麼
secondary clearance
解釋
副后角-
The secondary color is often yellow and red. according to electron probe analysis, the secondary color is formed because of the iron compounds in the cranny and clearance of jadeite
電子探針分析表明，次生色是由礦物顆粒間鐵質化合物呈它色，鐵質化合物一般分佈在硬玉礦物的解理縫、裂隙和顆粒間隙中。 -
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。
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