摩擦風阻 的英文怎麼說
中文拼音 [mócāfēngzǔ]
摩擦風阻
英文
specific friction resistance- 摩 : 摩構詞成分。
- 擦 : 動詞1 （摩擦） rub 2 （用布、 手巾等摩擦使干凈; 揩拭; 抹） wipe; scrub; clean 3 （塗抹; 搽） spre...
- 風 : Ⅰ名詞1 （空氣流動） wind 2 （風氣; 風俗） practice; atmosphere; custom 3 （景象） scene; view 4 ...
- 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
- 摩擦 : 1 （互相接觸的兩物體作來回相對運動） rub; chafe 2 [物理學] （相互接觸的兩物體在接觸面上發生阻礙相...
- 風阻 : windage; wind drag風阻力 wind resistance; 風阻損失 windage loss
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Direct calculation method of air duct frictional resistance
風管摩擦阻力的直接計算方法( 2 ) increasing of wind is mainly induced by shf and affecting of lhf is very little. ( 3 ) effect of terrain increases ground rough and tonsure of terrain press and fiction correspond enhance frictional damp effect
（ 3 ）地形作用相當于增加了地面粗糙度，地形壓力梯度項與摩擦項地疊加，相當于使摩擦阻尼作用增大，地形強迫作用使下邊界層從上至下風速減小，風向向左偏轉。However, as spin speed is increased, the power required to overcome windage and bearing friction rises sharply.
但是，隨著自轉角速度的增加，克服風阻和軸承摩擦的功率急劇地提高。There are three factors to influence precision of the laser scanner, i. e. inertial of the shafting friction drag resistance of bearing and wind resistance introduced by irregular geometrical structure under operating at high speed
轉鏡式激光掃描器的負載主要有三個：一是軸系的慣性，二是軸承的摩擦阻力，三是軸繫上的不規則物體的風阻。Secondly, the paper simplified the calculating model of fume in the high tunnel. took the fume restriction into account, the paper provided some equations to calculate the longitudinal fire ventilation. finally, the paper calculated three examples : the zhongliangshan tunnel and the left route of the yanmenguan tunnel
最後，本文將公路隧道火災的通風模型進行簡化，考慮火災煙流阻力（節流阻力，摩擦阻力，火風壓）的影響，提出了縱向式火災通風計算的方程式，並對中梁山隧道的左右線、雁門關隧道的右線進行了實例計算。分享友人