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- The friction drag coefficient increases with increasing afterbody fineness ratio and decreasing Reynolds Number. 后體摩擦阻力系數分別隨后體的長(cháng)細比的增加和雷諾數的減小而增加；
- Ratio of lift coefficient to drag coefficient. 升力系數與阻力系數的比值。
- The drag coefficient varies with the shape of the object. 拖曳系數隨物體的形狀而異。
- The principle and method of pipe flow calculation using friction drag of a straight pipe are introduced. 介紹了利用流體管道直管段的沿程阻力計算管道流量的原理和方法。
- 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，因而可以確定作用于表面上的凈力值。
- The lift and drag coefficient of flapping-wing MAV in different motion modes are calculated. 計算了撲翼微飛行器在不同運動(dòng)模態(tài)下的升阻力系數;
- The wave drag coefficient also increases with increasing upswept angle at transonic speed. 在跨音速時(shí)，波阻系數也與上翹角有關(guān)，上翹角增加會(huì )導致波阻系數進(jìn)一步加大。
- Canard wing increases lift coefficient with the penalty of the increase of drag coefficient. 低于主機翼的鴨翼將加強前掠翼布局的緩失速特性。
- Such parameters of flow characteristics are investigated as lift and drag coefficient and vortex shedding frequencies. 計算了圓柱的升阻力系數、尾渦脫落+頻率等描述繞流問(wèn)題的主要參量。
- Cavity length depth ratio strongly influences flow field、total pressure recovery、drag coefficient. 凹腔長(cháng)深比對流場(chǎng)特性、總壓恢復、燃燒室阻力影響顯著(zhù)。
- This paper analyzes the form mechanism of friction drag recovery around jacked pile, summarizes the application methods of recovery and construction measurement using engineering practice exampces. 本文對靜壓樁樁周摩擦阻力恢復值的形成機理進(jìn)行了分析,通過(guò)工程實(shí)例總結了恢復值利用的方法和施工措施,并對其利用值作了靜載檢測和效果評價(jià)。
- The aerodynamic drag coefficient of a bus body model is measured in the wind tunnel with the acoustic excitation technique applied. 本文利用內部聲激勵技術(shù),在風(fēng)洞中對某廂式客車(chē)車(chē)身模型進(jìn)行空氣阻力系數的測試。
- Smoother vehicles may have drag coefficients of the order of 0.55. 光滑飛行器的阻力系數可能為0.;55量級。
- Ben designed the fairing shell to have a drag coefficient that would allow me to achieve at least 50 kph on less than 130 watts of power. 本設計的整流罩外殼有阻力系數，使我實(shí)現至少50公里不到130瓦的功率。
- The streamlined shape of the vehicle to reduce drag coefficient, and the drag coefficient is the impact on vehicle fuel economy is an important factor. 流線(xiàn)型的外形能降低車(chē)輛的風(fēng)阻系數，而風(fēng)阻系數是影響到車(chē)輛燃油經(jīng)濟性的一個(gè)重要因素。
- The triangular shaped body that is suggestive of motion is also functional, achieving a drag coefficient (Cd) value of 0.276 . 三角異形體是暗示性的議案，也是功能，實(shí)現了阻力系數（裁談會(huì )）的價(jià)值0.;276。
- Currently, the world's most aerodynamic car is the 2010 Mercedes-Benz E-Class Coupe , featuring a 0.24 drag coefficient. 目前，世界上最空氣動(dòng)力車(chē)是2010年奔馳E級轎跑車(chē)，具有0.;24風(fēng)阻系數。
- The results show that the airflow separate at the front part of bus,and induces the high drag coefficient of 0 666 5.The aerodynamic characteristic of JT6120 need improving. 研究結果表明由于在該車(chē)的頭部產(chǎn)生了氣流分離 ;導致空氣阻力系數高達 0 .;6665;說(shuō)明氣動(dòng)性能存在明顯的不足;有必要進(jìn)行改進(jìn)
- The results showed that the pressure drag coefficient increases rapidly with increasing upswept angle and contraction ratio respectively, and with decreasing forebody incidence. 研究結果表明，后體的壓差阻力系數分別隨上翹角、收縮比的增加及迎角的減小而明顯增加；
- The main parameters calibrated in the model are dispersion coefficient(a=0.07, b=0.7), roughness length(0.02m), wind drag coefficient(Cwd=3%), and evaporation rate(0.1/d). 經(jīng)過(guò)率定后確定模型中主要參數值如下:擴散參數a=0.;07;擴散參數b=0
