drag coefficient 中文意思是什麼

drag coefficient 解釋
電力系數
  • drag : vt （ gg ）1 拖，曳；拖動，拖著（腳、尾巴等）；硬拖（某人）做（某事）[至（某地）]。2 打撈，（用撈...
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. The drag coefficient varies with the shape of the object.

    拖曳系數隨物體的形狀而異。
  2. Calculation of thickness wave drag coefficient for hypervelocity sweepback space debris

    超高速后掠飛片的厚度波阻系數計算
  3. The analysis of aerodynamic drag data shows that air drag coefficient reaches 0. 539

    空氣阻力試驗數據分析表明，模型的空氣阻力系數為0 . 539 。
  4. The analysis of changing transitional corner between the front and top of the model illustrate that air drag coefficient can be reduced 23. 30 %

    前圍與車頂的過渡由較小圓角變為較大圓角的試驗分析表明，空氣阻力系數可以降低23 . 30 。
  5. The analysis of the repeated test data shows the maximum deviation of air drag coefficient is less than 0. 88 % and the deviation of the most surface pressure data is within 1 %, it illustrates the test data is reliable

    重復試驗的數據分析表明，空氣阻力系數數據的最大偏差小於0 . 88 ，絕大部分測壓試驗數據的偏差均在1以內，這說明客車模型風洞試驗數據的精度較高。
  6. Several icing parameters were imported to calculate the change of drag coefficient and typical derivatives between clean aircraft and iced aircraft, and the aircraft flight envelope change of iced and un - iced situation was computed, and the small disturbance flight dynamics model was modified to study the effect of the ice accretion on the aircraft dynamics by importing the ice parameter to it, and the longitudinal and lateral stability and the elevator, aileron and rudder step response were also studied and simulated

    根據這些參數計算了飛機結冰后阻力系數以及典型氣動導數的變化，並計算了結冰前後飛機的飛行包線；同時對結冰前後飛機的縱向、橫側動穩定性以及升降舵、副翼和方向舵階躍操縱響應進行模擬計算。
  7. In many cases an overall drag coefficient is given so that the net force on the surface can be determined.

    在許多情況下，總的拖曳系數是已知的，因而可以確定作用於表面上的凈力值。
  8. Blade profile drag coefficient

    槳葉剖面阻力系數
  9. Dc drag coefficient

    風阻系數
  10. Canard wing increases lift coefficient with the penalty of the increase of drag coefficient

    低於主機翼的鴨翼將加強前掠翼布局的緩失速特性。
  11. The main results are as follows : 1 ) it is a obvious effect of wave on the wind drag coefficient. the wind drag coefficient can be add up to 1. 5 times of origin value when we consider the wave effect on the drag coefficient. it also has changed the sea level

    主要成果如下： 1 、波浪對表面拖曳系數的影響是明顯的，特別是在浪大的時候，拖曳系數可以增大到原來的1 . 5倍；拖曳系數的改變也改變了水位場，在a點引起的增水量級值得人們注意。
  12. In conclusion, the design of automobile model is not only to reduce drag coefficient but also to improve lift coefficient, so the automobile has good performance

    綜合以上工作，明確了汽車車頭設計不僅要考慮空氣阻力系數的降低，同時要考慮升力系數的變化，以保證良好的行駛性能。
  13. In the thesis the low drag - low noise optimization of the vehicle main form design is realized, main accomplishments are as follows. researched the knowledge of drag and flow noise, the parameters of the boundary layer are calculated by the hess - smith method and boundary layer momentum integral method. the calculation of the length of transition zone and change in boundary layer displacement thickness between laminar and turbulent states in the transition is improved, then the drag coefficient and self - noise from the transition zone are calculated as the objective functions of the optimization

    主要研究內容和成果如下：對航行器繞流流場進行分析，深入研究了阻力和流噪聲產生機理，建立了阻力系數和自噪聲的評估數值計算模型；採用物面分佈源匯法和邊界層動量積分法對繞流流場的流體動力參數進行計算，改進了轉捩區長度和邊界層位移厚度的計算，應用於航行器頭部駐點自噪聲的計算；最後設計了阻力系數和自噪聲數值計算程序模塊。
  14. The paper researches the transient time precision and the following problem of the results developing with time for 2 - d high order blocking and matched method, at the same time, anlysing the stability of high order methods including boundary conditions. the results show that the domain decomposition and matched method using high order method can follow the time developing solution of taylor problem well, the computation result of the flow over a single or two tandem arranging circular cylinder agree the experiment and others " results well, moreover, the panting results of lift and drag coefficient are better than others

    本文利用高精度分塊耦合求解方法，對其瞬態時間精度和非定常時間發展解的跟隨性問題進行了研究，同時也對包含邊界條件的線法高精度格式的穩定性也作了分析，研究結果表明高精度的分塊耦合求解方法可以很好地跟隨taylor問題的時間發展解，與單圓柱繞流和雙圓柱繞流的實驗結果比較以及他人結果比較符合很好，對升阻力系數在渦脫落時的脈動問題的結果優於他人結果。
  15. The frontal cross - sectional area, the velocity of the swimmer, the wetted surface area of the swimmer, the density of the fluid, and the coefficient of drag will all be the same whether the body is on the front or side

    身體前部分的橫截面面積，運動員的速度，運動員的觸水面積，液體的密度以及拖曳系數都是一樣的而無論身體是朝向一邊或前傾。
  16. The increase of drag coefficient is significant at higher angles of attack

    鴨翼增大升力的同時也增大了阻力;大攻角時，鴨翼帶來的阻力增量較大。
  17. All of the results indicated the turbulent boundary layer had been turned into the laminar layer. the skin friction coefficient drops rapidly. this result not only proved the phenomenon of reverse transition had occurred, but also showed that this condition was drag - reducing condition

    實驗結果表明板面附近的流動已由湍流流動轉變為層流流動，同時平板表面的摩擦系數較沒有溫度梯度時有大幅度下降，不僅證明了邊界層逆轉捩現象的存在，也說明了這種條件起到了減阻的效果。
  18. And the results of the wake length, separation angle, and drag or pressure coefficient for low reynolds number are excellent agreement with previous experimental and numerical results

    得到的低雷諾數下的迴流長度、分離角、阻力系數、壓力系數和現有的試驗或數值結果相比，都能良好吻合。
  19. Finite differential method ( fdm ) was applied to analyze the external flow field by fluent and calculate the drag coefficient, and the result of the external flow field by changing the shape of automobile model can be compared

    採用有限差分法，運用fluent軟體，分析某轎車模型附近的流場，計算出阻力系的數值，研究車身前部改進對汽車外流場的影響。
  20. The relationship between the non - dimensional drag coefficient of sma plate face and time is presented, and the pressure distribution on and around the sma plate surface as well as the karman vortex configuration in the wake at a certain time are given

    給出了形狀記憶合金薄板表面的流體無量綱阻力系數隨時間的變化關系，同時給出了某一時刻薄板表面及其周邊的壓力分佈和薄板尾跡中的卡門渦街形態。
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