進氣阻力 的英文怎麼說

中文拼音 [jìn]
進氣阻力 英文
intake resistance
  • : 進構詞成分。
  • : 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...
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : 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...
  • 進氣 : air admission; admission; inlet; onflow; charging; access of air; admittance; air in; air intake;...
  • 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
  1. The aerodynamic characteristics of a projectile with wrap around fins are studied systematically in this paper, as follows : 1. the lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera

    本文對某卷弧尾翼彈動特性行了系統研究,主要內容與結論為: 1 .將卷弧翼按照相同投影面積的平板翼行工程估算,得到升系數、系數、俯仰矩系數、俯仰尼導數、滾轉尼導數曲線。
  2. The paper has founded the model of laser transmission in launch process and the movement model of laser - powered vehicle, and has analyzed the influence on performance of launch system, which was raised by some factors, for instance, the performance of thruster, the attenuation in transmission, the height of mode - transform, the laser power, the air drag force, the launch height, and so on

    本文研究了激光推微小衛星發射系統的概念和性能。建立了發射過程激光傳輸和激光推運載器運動模型,分析了推系統性能、大傳輸衰減、模式轉換高度、激光器功率、大飛行、發射點高度等因素對發射系統性能的影響。
  3. 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系數以及典型動導數的變化,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行模擬計算。
  4. Meanwhile, it puts forward the exact demand to the indicators of coal for gasification. it systematically studies the thickness of economical heat preservation and calculation process of resistance loss of delivery pipe for analyzing and appraising the techno - economic of hot coal gas ' s delivery pipes. it sets the mathematic model for the calculation of economical heat preservation thickness and resistance losses of conveying pipes, compiles the computer program, dutti and dutt2 and draws the block diagram of relevant computer program

    為便於熱煤輸送管道的技術經濟分析與評價,對輸送管道經濟保溫厚度和輸送管道損失的計算過程,行了系統的研究,建立了輸送管道經濟保溫厚度和損失計算的數學模型,繪制出相應的計算機程序框圖,編制了計算機程序dutt _ 1和dutt _ 2 ;並對熱煤的混合燃燒過程行了研究。
  5. 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,本文對不同空塔速度、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空流動過程的影響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。
  6. Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied

    本文針對電站風機性能監測系統研究較少的現狀,在實驗的基礎上分析了現場加裝箱和由於安裝造成的導流器葉片開度不一致對風機性能曲線的影響,並在此基礎上採用無節流方法測量流量,以風機調節性能曲線為依據,建立了基於徑向基函數( rbf )神經網路的風機流量全程監測模型;以實驗室4 - 73no . 8d離心風機為研究對象,探討了rbf神經網路差壓模型在變轉速、變導流器開度和變管網等工況下的應用精度和誤差分佈規律;最後用visualc + +語言開發了風機性能在線監測系統。
  7. After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %

    摘要通過對加熱爐幾種工況行熱計算、冷態試驗的流場分佈及測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定,確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒,增設煙含氧量分析,可以將燃燒的過剩空系數從1 . 35減小到1 . 15以下,極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果,從而降低排煙溫度45 ,減少加熱爐排煙損失,節約了煤量6 %以上。
  8. 3. on boiler retrofit, the calculation of fuel burning, the heat calculation of boiler inside structure and convection section, and the design of structure parameter of feed water heat exchanger are made. the flue gas channels " resistance calculation and the boiler strength verifying are also carried out. replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant

    對鍋爐本體行了燃料燃燒計算、爐膛結構熱計算、對流受熱面結構熱計算、鍋爐給水加熱器結構參數設計、煙道計算及鍋爐元件強度校核等;改了水冷壁布置使換熱效果更好,減少輻射換熱損失;改對流段結構,更充分的利用爐膛出口煙余熱,提高熱效率;並且行了煙計算、熱效率計算和能量平衡測試,對改后的稠油燃料和改行了對比,燃燒狀況和熱效率有明顯改善。
  9. Results show that all the geometric parameters have remarkable effects on combustion performance ; the swirl of intake air generated by skew intake holes enhances fuel - air mixing, minimizes dead zone and stabilizes the flame with reverse flow, but the excessive reverse flow can cause overheat in combustion chamber and exhaust ; the consistency of flow resistance in intake and exhaust system is conducive to the stability of heater performance

    研究表明,燃燒室孔的孔徑、孔數、孔的分佈及方向等均對燃燒性能影響很大;斜孔所產生的旋轉,雖具有強化燃混合、消除死區和迴流穩焰的作用,但迴流過度會使燃燒室及排溫過高;保證系統流動(壓)的一致性,有助於保證加熱器性能穩定。
  10. For example, it can be used to drag make - up and solar pressure cancellation of low orbit spacecraft, formation flying and precise positioning of small satellite, repos

    同時, mpt也可用於低軌道( 300 500km )航天器的大補償,星際航行航天器的主推,以及星座和小型衛星的編隊飛行和精確定位等,具有廣闊的應用前景。
  11. The method is described as follows : the velocity of the moving part and the gas chamber pressure were measured with a dynamic test measurement system ; a dynamic model was built on force analysis of the moving part ; the total kinetic resistance replaced the horizontal friction and water resistance ; then the resistance - velocity relation curves at moving stages were obtained ; with the empirical formula of the gas chamber pressure and the resistance - velocity relation curves, the preliminary dynamic characteristics were analyzed and the structural form and key parameters of an underwater assault rifle were determined

    具體方法為:由動學測量系統測得活動件速度和室壓;分析活動件的受,建立動學模型;以運動總代替水平方向上的摩擦和水,獲得各運動階段的速度關系曲線;利用室壓經驗公式和速度關系曲線,對水下突擊步槍行初步的動學分析,確定其構造型式及主要參數。
  12. 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行了空學模擬和運動學模擬,驗證了設計的可行性和正確性。
  13. The relations between soil surface resistance and evaporating time, and difference of vapour pressure between evaporating plane and atmosphere were simulated. simulating result of the latter was better than that of the former

    同時,還對土壤表面與蒸發時間的關系、與蒸發時間及土壤蒸發面和大間水汽壓差的關系行了模擬,結果后一種比前一種模擬更符合實際。
  14. 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動,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空學模型,利用計算機行數值分析與計算,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。
  15. 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

    利用高速列車空學模型實驗系統對高速列車在入隧道過程中瞬變壓的傳播規律行研究,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。
  16. In order to solve the problems effectively, under the auspices of 863 plan in china, the synthesis diagnosis has been carried by means of measuring and numerical imitating the combustion chamber of refining column, and some conclusions is such as : ( 1 ) through measuring the temperature and combustion in the burning chamber of the refining column, the result shows the temperature difference on the same level is more than that in height direction, and there is a few of co in bottom of burning chamber. ( 2 ) in order to ensure normal work of flue system in lead column in the course of zinc refining, theoretic calculation and measure about the flow resistance of exhaust gas are carried through. the results of study reveal that drawing out force of chimney is inadequate, which is mainly caused by illogicality of flue construction

    在研究過程中,採取了現場實測和數值模擬手段對韶關冶煉廠鋅精餾鉛塔燃燒室及排煙系統行了綜合診斷,具體結果包括如下: ( 1 )完成鋅精餾鉛塔燃燒室內溫度測試以及燃燒狀況的測試,結果發現:鉛塔燃燒室內水平方向的煙溫度並非均勻,而且其溫差比上下方向的溫差更大,以及鉛塔燃燒室尾部存在co未燃燼問題; ( 2 )為了保證鉛塔煙系統的正常工作,對煙道系統的行了理論計算及測試分析,結果發現:鋅精餾鉛塔煙系統中煙囪抽不夠,這主要是煙道結構不合理所造成的。
  17. This research is to eject some compressed air into the dredging pipe to get tri - phase flow in the pipeline, and research the change about the pipe resistance, at the same time, obtain the more effect adding gas method and realize reduction friction and prolong the dredging distance

    本文研究的目的是在一定的漿體流速和漿體濃度下向輸送管道中加入一定量的體,在管道中形成三相流,而探討加后管道流動的變化規律,同時確定出比較有效的加方案,從而實現減少延長排距的目的。
  18. The algorithm and related influencing factors, such as gravitational model, atmospheric drag, sample intervals and filter parameters, are deeply analyzed, and some important conclusions are deduced

    對定軌演算法及其主要影響因素,如地球引場、大、采樣間隔和濾波參數等行了深入分析,並得出一些重要結論。
  19. According to the character of outer shape of modem buses, the numerical calculations are performed from the simplest shape - cuboid by using ansys / flotran software. first, the foreside of the cuboid is modified step by step in 17 models ( this is equal to the process of modification to the foreside of a bus ). second, the afterbody of the cuboid is modified step by step in 9 models to model flow wake at rear end and get the drag coefficients and lift coefficients in different aterbodies

    在本文中,應用ansys flofan軟體,根據現代客車外形的特點,從最簡單的長方體開始行數值模擬計算,首先對長方體的前部行逐步改造(相當于對一個客車頭部行改造的過程) ,這一步驟包括了17個模型;然後再對其尾部行變化,以模擬客車后車體形狀對空系數的影響,該步驟包括9個模型:最後給出兩種現代客車的數值模擬結果。
  20. Much attention is paid to the effect of perturbations on satellite formation flying and how to decrease the effect, which are studied with the earth oblateness and atmospheric drag considered

    攝動因素對衛星編隊飛行的影響以及如何盡量減小攝動影響是應用中非常關心的問題,本文考慮地球扁率和大兩種攝動因素,對此行了研究。
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