friction fluctuation 中文意思是什麼
friction fluctuation
解釋
摩擦起伏- friction : n. 1. 摩擦，阻力。2. 傾軋，沖突，不和 （between）。3. 擦熱皮膚。
- fluctuation : n. 1. 波動，起伏，漲落；【物理學】脈動。2. 動搖不定，躊躇。3. 【生物學】彷徨變異。
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The research result demonstrates that along with the increment of reynolds number, the root mean square value of outer fluctuating magnitude of the external diameter in fall frequency band increases, the root mean square value of fluctuating magnitude of the external diameter in high frequency band decreses, demonstrating that the fluctuation of flexible pipe wall changes fluctuation don field of original rigid pipe, large - size eddy motion increases and small - size eddy motion decreases, this reduces energy loss and increases friction reduction effectiveness
研究結果表明：隨著雷諾數的增加，全頻帶的外徑脈動的均方根值加大，但高頻帶外徑脈動的均方根值減小，說明柔性管管壁脈動確實改變了原剛性管的脈動流場，大尺度渦的運動加劇，低尺度渦運動減弱，從而使得能量損失減少，減阻效果增大。 -
The nonlinear interation induced tidal period and water level fluctuation obviously. the bottom friction effect is direct ratio to the bottom friction coefficient. the bottom friction effect reduces the set up water level, and minish the set up
非線性效應是造成風暴潮增水水位明顯波動的原因，底摩擦效應對潮位的貢獻與底摩擦系數成正比，底摩擦效應使增水水位降低，減小了增水的幅度。
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