bluff body 中文意思是什麼
bluff body
解釋
扁平體-
Verification regulation of target bluff body type flow transducer
靶式流量變送器檢定規程 -
Fv mc hybrid algorithm for axisymmetric bluff body stabilised turbulent flows
混合演算法求解軸對稱鈍體后湍流流場 -
In this work, a new dual triangulate bluff body vortex flowmeter was developed, the flux lower limit value of which lower by 50 % that of the old single bluff body vortex flowmeter. the linear correlation of the correlation between the velocity pressures of fluid disturbs wave and that of vortex precession in vortex precession flowmeter was brought to light, and a spectrum phase discrimination method based on fft to remove the effect of fluid pulsating interference on vortex precession flowmeter was advanced
研製出比傳統單鈍體渦街流量計流量下限降低約50的新型雙鈍體渦街流量計；揭示出脈動流中旋進旋渦流量計流體振動特性，並在此基礎上提出基於fft相位判別的數字信號處理方法來消除流場脈動對旋進旋渦流量計的干擾的方法。 -
In the second chapter, the fluid mechanics principle of vortex flowmeter at first was introduced. the classical theory about vortex flowmeter and the method of computational fluid dynamics about flow around body were expanded on, and the model of the single bluff body and the dual bluff body vortex flowmeter were constructed. and then, fvm - finite volume method - analysis software fluent was applied to analyze the flow phenomenon of flow over single bluff body or dual bluff body
然後通過大量實驗和理論分析給出雙鈍體渦街流量計的設計準則：當管徑為d ，鈍體形狀為三角形，則鈍體設計參數為：銳邊寬度= 0 . 26d ，高度= 0 . 34d ，鈍體之間的距離= 1 . 2d （即當兩鈍體寬度相等且鈍體距離等於單鈍體兩列旋渦之間的距離） 。 -
Random vortex method for two - dimensional flow past bluff body
鈍體繞流的隨機渦方法 -
By analyzing result of simulation, the intensity amplification effect of velocity pressure, which is induced by flow over dual bluff body, and the measurement accuracy of the dual bluff body flowmeter were projected
按照該參數設計出的樣機，其測量精度1 ，重復度0 . 3 ，流量下限與單鈍體渦街流量計相比下降約50 。
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