空氣動力阻力 的英文怎麼說

中文拼音 [kōngdòng]
空氣動力阻力 英文
aerodynamic drag
  • : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
  • : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • 空氣 : 1 (大氣) air; atmosphere 2 (氣氛) atmosphere 3 (氣閘) air brake4 pneum ; pneumo ; pneumat ;...
  • 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  1. Various aerodynamic devices, as well as passive dampers and serve dampers, are available.

    各種裝置以及無源尼器和伺服尼器是可用的。
  2. Abstract : apply computer simulation to the distribution pattern of air - flow without considering the cold condition of the combustion and compare the flow patterns under different designed circumstances. and the effect of the design of the partition in the air way of the burner on the flow and mixture of gas and air is especially studied. the result shows that the design of partition plays a very important role in strengthening the mixture of gas and air, but increases the loss of the resistance in the air way and the total pressure of the air way in same working conditions needs increasing

    文摘:應用計算機模擬的方法,在不考慮燃燒的冷態情況下,研究了熱風爐燃燒室內的流分佈規律.在此基礎上,比較了2種不同設計方案的流流特徵,尤其是研究了燃燒器通道內流板的設置與否對和煤的流和混合的影響.結果表明,流板的設計對加強和煤的混合有著極為重要的作用,同時也增加了管道的損失,在同樣的工況條件下需要提高管道系統的總壓
  3. The square pattern has been obtained for the first time in dielectric barrier ar / air discharge at atmospheric pressure by using the double water electrodes and its spatio - temporal dynamics is measured by optical method. the phase diagram of pattern types as a function of air concentration and applied voltage by fixing other parameters is given

    本論文採用特殊設計的雙水電極介質擋放電實驗裝置,首次在氬的混合體中獲得了大壓常溫下的穩定正方網格斑圖,並對其進行了時學測量。
  4. And experimental study on the heat transfer performance and pressure drop characteristic of the process of bubbling evaporative cooling are carried. as there are so little attention and studies on the process bubbling evaporative cooling about heat transfer in the world at present, this paper mainly deals with the effects of the different bare tower velocity, weir height, heat flux density and plate perforation geometries on the heat transfer coefficient and the pressure drop of the process of air flowing

    由於目前國內外對鼓泡蒸發冷卻過程在換熱方面的關注和研究較少,本文對不同塔速度、不同堰高、不同熱流密度、多孔板的不同幾何尺寸對換熱系數及過程的影響進行了實驗研究及理論分析,總結了本實驗條件下換熱及的實驗關聯式。
  5. The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade

    葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題,本文在分析葉片內部通道冷卻的流與傳熱情況的基礎上,建立了三維、可壓縮紊流的物理模型,得到了通用的求解辦法;利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型,計算了冷卻通過這幾種通道時的流與換熱情況,得到了各種不同情況下計算區域的溫度場、壓場、速度場;在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響,並整理得到了各種通道形式下,努謝爾數和因子與雷諾數的函數關系;本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果,通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較,表明了這種新型鮚構的優勢,對于葉片內部通道冷卻結構的設計可以起到指導的作用。
  6. Abstract : this paper introduces briefly the control principle of trajactory correction technique and analyzes the structures and application areas of several typical trajectory correction mechanisms such as paddle type ring and d - ring etc. moreover, it makes the aerodynamics simulation and dynamics simulation of trajectory correction mechanism as paddle type damping ring. the simulation result proves the correctness and feasibility of the design

    文摘:簡要介紹了彈道修正技術的控制原理;分析了槳式、 d型環等幾種典型彈道修正裝置的結構特點和應用范圍;並對其中的槳式尼環彈道修正裝置分別進行了學模擬和運學模擬,驗證了設計的可行性和正確性。
  7. Acceleration, for instance, will be offset by air resistance and rolling friction, instead of a " max velocity. " robots crashing into the side of another robot will push it sideways, based on laws of friction and a semi - elastic collision

    例如,加速度將會被和滾摩擦抵消一部分,而不只受到「最大速率」的限制。根據摩擦和半彈性碰撞原理,機器人撞到另一個機器人的一側時會把它推到一邊去。
  8. Computational fluid dynamics ( cfd ) techniques are used to study and understand fluid behavior in tunnels. by simulating complex specific operational cases, we can educe velocity or flux distribution in tunnel under different ventilation and resistance situation and determine the favorable operational procedures of the erlang mountain tunnel ventilation in a fire case. comparison has been made between a simulation and experiment for some cases in order to prove the cfd model is powerful, so that enables the study of cases for which experimental data is not available

    採用本文將隧道內的流看成是理想流體的一維恆定流,通過對二郎山特長公路隧道半橫向通風系統建立隧道內的學模型,利用計算機進行數值分析與計算,得出發生火災時,不同通風條件下隧道中的風速分佈及流量分佈,並通過實驗室隧道模型實驗進行驗證與修正,依據研究結果給出了二郎山半橫向通風隧道的火災控制方案,從而解決了二郎山公路隧道通風對火災的控制問題,同時為半橫向通風公路隧道的火災通風提供科學的方法。
  9. In this paper, using high - speed train aerodynamics model research system, the propagation mechanism of compression wave, which created when high - speed train entering into a tunnel was researched, at the same time the effect of velocity of the model train and the ratio of train with tunnel was analyzed, the result is helpful for future research

    利用高速列車學模型實驗系統對高速列車在進入隧道過程中瞬變壓的傳播規律進行研究,並分析了列車速度以及塞比對測試結果的影響,得出的結論對以後的研究具有一定的參考和借鑒。
  10. A labyrinth seal is a non - contacting circumferential seal utilizing a tortured path for flow between the stationary and rotating ( or reciprocating ) parts. the design utilizes a series of pressure drops to reduce the leakage

    迷宮密封是一種通過曲折通道增大流來實現封嚴的非接觸密封,通常用於密封體,廣泛應用於航、能源、流體等領域的機械中。
  11. The spherical structure is one of the most efficient interior atmospheres for human dwellings because air and energy are allowed to circulate without obstruction

    的流並無礙,是其中最具效用適合作人類的居所。
  12. Air churning resistance

  13. Over the years, lrt technology has been upgraded to counter the negative effects of traffic jams, noise, environmental damage, air pollution, etc. featuring a small radius of curvature, multiple car units, modulated train set, enlarged cars both in transverse and longitudinal directions, low car floors, streamlined car design, advanced control systems, and flexible right of way, modern lrt systems have been successfully adopted to most environmental and social needs. they adequately display their merits as transportation systems ; i. e., the lrt system is able to co - exist with automobiles. the low car floor means that roads can act as station facilities, and passengers can get on and off the cars in the street

    輕軌運輸系統lrt源起於歐洲街道電車street car ,街道電車一度在都市捷運化與私人機化的浪潮沖擊下迅速沒落,但隨著都會地區機車輛不斷增加,道路交通塞噪音環境破壞排放廢污染問題嚴重惡化之際,輕軌車輛技術已不斷提升,具備小轉彎半徑能的聯結式車廂模組化列車編組車廂斷面長度加大加長低地板車廂流線型車廂設計,搭配先進控制系統及彈性的路權型式,使現代化輕軌系統具備有與生活間結合重視環境問題與社會情勢並活用進化街車之都市交通工具等特徵與優點,如高性能輕軌列車與汽車共存,低底盤的車廂創造無障礙車站間,道路即是車站設備,旅客可以在街區上下車,提供沿線居民高度的便利性,消除交通堵塞噪音及污染等,輕軌系統並與街景充分的調和,成為活的都市意象。
  14. Against the status of large scale ultra low frequency air spring vibration isolation platform, which is low damping and poor performance of low frequency, and after analyzing the existing key damping system, a new type differential electromagnetic damping system ( emds ) is developed in this article in order to reduce the resonance peak of the platform effectively and improve the low frequency performance of the platform

    本文針對大型超低頻彈簧隔振平臺尼小、低頻隔振性能較差的現狀,在比較多種提供的方法后,提出了用電磁作為隔振平臺的,並開發研製了差式電磁尼器系統。該系統可以有效降低隔振平臺的諧振峰值,從而達到了提高隔振平臺低頻性能的目的。
  15. The pressure drop of airflow consisting of pressure drop of the perforated plate and liquid - layer is mainly influenced by the plate dimension and bare tower velocity, with the increasing of bare tower velocity, pressure drop of the perforated plate increases. the experimental data are used to develop a correlation as follows : pd 1. 04 10 8 ( wa / s ) 2g this correlation should be used when 5 , 0. 299m / s u 1. 056m / s. and the pressure drop of liquid - layer is mainly influenced by weir height

    主要由孔板和液層組成,孔板主要受多孔板的幾何尺寸及塔速度的影響,塔速度越大,孔板越大,對實驗數據進行回歸分析得出的實驗關聯式為: pd 1 . 04 10 8 ( wa / s ) 2g公式適用范圍: 5 , 0 . 299m / s u 1 . 056m / s 。
  16. A lumped parameter model was developed for predicting the transient motion of mirrors, taking into account electrostatic and tensile forces and viscous air damping via squeeze film theory

    考慮靜電驅、張尼衰減對變形鏡回復過程的影響,建立一種復合參數模型來預測變形鏡的瞬態行為。
  17. Low grade fuels and / or polluted air can cause gum, varnish and carbon deposits to be formed in the carburetor during comustion which can result in rough idling, stalling and incrased gasoline consumption. 3 + 3 cleaner ' s superior formula will effectively remove gum, varnish and carbon deposits when sprayed directly into the carburetor, 3 + 3cleaner will clean carburetors, linkage, automatic chokes, pcv valves, heat risers, the spark plugs and the entiro system while lubricating and femoving moistuer on all moving parts, use 3 + 3 cleaner to restore efficiency, increase engine power maintain high gasmileage and have a smooth running engine

    和汽油中的不純物質,在汽車使用過程中會產生污垢和炭積物,塞汽車的化油器(呼吸系統) ,使汽車無及加油不暢順, 3 + 3牌化油器強清洗劑獨有的特殊配方,直接噴入于化油器內,能迅速有效地清除洗化油器,火花塞及燃油系統的油漬污穢和炭積物,並對轉軸等旋轉部位提供潤滑及防銹保護,減少積炭的產生,使引擎起順利及平穩運轉,增強馬及節省燃油
  18. This increases their air - resistance and reduces the shock of impact when they hid the ground

    這樣就加大了,並減小了它們著地時沖擊帶來地震
  19. The flowfield over low - drag and long - range projectile with small attack angle is numerically studied from transonic to supersonic velocity. it provides basic work for aerodynamics characteristic of this projectile and for lateral jet interaction flowfield, and it shows this projectile can decrease drag. zonal method is tried to compute flow over projectiles and results is satisfied, but computation is much slower

    系統研究了低遠程彈丸在小攻角狀態,低跨聲速、高跨聲速和超聲速時的非對稱繞流流場,為該彈形研究提供理論指導並為彈丸側噴流研究奠定基礎,結果顯示低遠程彈丸外形具有優化繞流場、減小的特點。
  20. A kind of grid generation method based on two - dimension poisson equtions is devlop - ed into the grid generation method based on three - dimension poisson equtions in this dessertation. use this method, this paper generals the grids of glide bullet to increase range that is at three states, that is with no control rudder and no tail wing, only with tail wing and with control rudder and tail wing. this paper has calculated the aerodynamic coefficients of glide bullet to increase range that is at three states. beside this the paper has given the results and analysised the differences of the three states, and the effects of control rudder and tail wing to the lift and drag. this can give us some information about the ability of the control ruder and tail wing for increasing the range

    本文在二維泊松方程網格生成方法的基礎上推導出了一種三維泊松方程網格生成方法。並利用該方法生成了繞彈體、尾翼彈、滑翔增程彈三種不同彈形的流場網格。計算了超音速來流下彈體、尾翼彈,滑翔增程彈三種不同彈形的學系數,分析了三種不同彈形計算結果的差別;分析了控制舵和尾翼對升的影響。
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