氣動力影響 的英文怎麼說
中文拼音 [qìdònglìyǐngxiǎng]
氣動力影響
英文
aerodynamic influence-
These effects appear to be negligible with respect to aerodynamic coefficients.
就空氣動力系數這方面來說，這些影響似乎可以略去。The paper analyzes the characteristic of aerodynamics with structure of helicopter propeller blade, dissertrates vortex theory and the theory about gliding air field which produce the power of helicopter propeller blade. at the same time it also deduce the method of computing the induced velocity produced by helicopter propeller blade with vortex theory. at last, an influcence to the spreading of sound is discussed
並且將兩種定位演算法進行了比較，說明了優劣；結合直升機的結構分析了旋翼的空氣動力特性，論述了直升機旋翼產生拉力的滑流理論和渦流理論，結合渦流理論論述了直升機旋翼流場誘導速度的計算方法，在此基礎上分析了直升機旋翼流場對聲音傳播的影響。Firstly, a representative wind and wave model, which could both simulate the main characteristics of wig over sea waves and be suitable for numerical calculation, is presented. the model completely considers the fully nonlinear effect of wave surface on the wavy air flow, separates the disturbance of wave surface from the wing - air wave interaction flow, and overcomes the numerical calculation difficulties due to the large difference of dimensions between wing and water waves
首先針對機翼在風浪中的非定常非線性氣動力問題，提出了一個既能夠反映風浪場主要特徵又適合於數值計算的風浪場模型，該模型完整地考慮了波浪表面對氣流場的全非線性影響，使波面對流場的擾動分離出來，消除了機翼和波浪幾何尺度上的巨大差異帶來的數值計算上的困難。Three dimensional interaction flowfield over high - speed spinning projectile with lateral jets is numerically simulated in this dissertation firstly. complicated shocks wave patterns is analyzed. several factors concerned such as high - speed spinning, attack angle, base bleed and so on, are studied
本文首次完成了高速旋轉彈丸側噴三維干擾湍流流場的數值模擬，分析了彈丸側噴流場復雜的波系結構，研究了高速旋轉、攻角、底噴等因素對彈丸側噴流場的影響規律，深入分析了旋轉側噴彈丸的空氣動力學特性。The work module of rudder was discussed and studied by simulation in side jet and aerodynamic compound control manner, the effect on guidance accuracy by control cycle of attitude control engine and action cycle of control loop was simulated
重點對採用燃氣動力氣動力復合控制方式中舵系統的工作模式進行了探討及模擬研究，對姿控發動機控制周期及控制迴路工作周期對制導精度的影響進行了初步模擬研究。The results show that the frame of the grid fin has the greatest effect on the grid fin drag characteristics, reducing the drag levels and enhancing the lift - drag ratio for grid fin may be obtained by selecting appropriate frame cross - section shape and thickness of grid fin
計算結果顯示，格柵翼的幾何結構參數對格柵翼的氣動力特性影響很大，格柵翼的邊框剖面形狀和厚度對格柵翼的阻力影響最大，所以選擇合適的邊框厚度和剖面形狀可以有效地減少格柵翼的阻力，提高陞阻比。A liquid drop removed from a sheet or jet may be exposed to the aerodynamic pressure effect of a high relative gas velocity.
離開液膜或射流的液滴，可能會受到高的相對速度氣體的氣動壓力影響。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
利用高速列車空氣動力學模型實驗系統對高速列車在進入隧道過程中瞬變壓力的傳播規律進行研究，並分析了列車速度以及阻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。Aerodynamic roughness of cultivated soil and its influence on soil erosion by wind in a wind tunnel
耕作土壤表面的空氣動力學粗糙度及其對土壤風蝕的影響Effect of gap between driver cab and freight body of heavy - duty truck on its aerodynamic characteristic
大型載貨汽車駕駛室與貨廂間隙對氣動力特性的影響Attenuates slower than the c. e., when the wing fly high enough, the c. e. is the main effect to the aerodynamic characteristics. 3. the larger the chord, the stronger the c. e. and w. e
飛行高度較低時，波動效應和曲壁面效應對機翼的氣動力都會產生很大的影響，兩者之間存在較強的藕合效果;但是飛行高度較高時，綜合的結果主要體現了波動效應的特徵。Three models are employed to analyze the aerodynamic characteristics of a wing above sea - wave. those are ( 1 ) curve surface effect ( c. e. ), ( 2 ) wavy air motion effect ( w. e. ) and the coupled effect a. e
研究了曲壁面效應，波動效應以及壁面和波動綜合效應三種影響模式對二維和三維機翼在風浪中飛行時的氣動力性能的影響規律，指出了二維和三維機翼氣動力特性的共性和區別。The weather analysis and climatic characteristics of the heavy - hard rainfall in this area, structure characteristics during the rainstorm, the mechanism and structure of mesoscale systems bringing rainstorm and etc. are studied by conducting diagnostic analysis, theory of dynamics and numerical simulation. the influence on the rainstorm causing by mesosc ale topography piling on the plateau, the particular valley topography in northeast plateau and complex surface vegetation are researched by numerical experiments
本論文試圖採用診斷方法、診斷和天氣動力學理論相結合的方法、數值模擬等方法對高原地區大到暴雨的天氣、氣候特徵，暴雨產生時的物理量場特徵、產生暴雨的中尺度系統的發生機理和結構特徵等方面進行研究，對疊加在高原上的中尺度地形、高原東北部特殊的外流河谷地形及復雜下墊面性質對暴雨的可能影響進行數值試驗，以揭示高原暴雨發生發展的物理機制。This paper studies the effect on aerodynamic characteristics of the grid fin geometry by choosing different cross - section shape and thickness outer frame, changing the thickness of internal fins and the density of internal honeycomb, comparing the datas obtained from the corresponding wind tunnel tests
模擬了格柵翼的邊框剖面形狀和邊框厚度以及格柵莖厚度、蜂窩疏密度對格柵翼氣動力特性的影響，並把計算結果與實驗結果進行了比較。In this paper, the corresponding software is programmed employing the matlab. the structure parameters of the air - volume, and the pressure oscillation at the exit of the pipe can be calculated as soon as the preliminary data have been given this research project is funded from the national natural science foundation of china. ( 598740337 )
本文研究了空氣室對管道系統壓力脈動的影響，提出了消減或增強壓力脈動的空氣室設計方法，利用matlab編制出相應的計算軟體，只須輸入管道系統的相關數據，便可計算出空氣室的結構參數和管道出口端處的壓力幅值。It tell us : the abrasive capability of fly ash ; the similar calculation of ash erosion ; the calculation of ash erosion in the tube in turn and tube out of turn ; the reason of tube abrasion for gas flue ; the influence of air parameter for fly ash erosion ; the influence of changing temperature ; the influence of the flue gas composition, etc. next, it advances the solving measure ; reduce the flue gas velocity ; reduce the concentration of fly ash ; responsible construction : replace smooth tube with spiral tube ; use the new material of abrasion ; fuel desulfurization ; reduce so3 of flue gas ; raise flue gas temperature, making it up the dew point ; use the abrasion - resistance material to resist abrasion
討論了飛灰磨損性能、管壁受飛灰沖蝕的近似計算、灰粒對順列管和錯列管的磨損計算、煙氣走廊引起對流管束的磨損機理、空氣動力參數對飛灰沖蝕的影響以及受熱面壁溫變化及煙氣成份對飛灰磨損的影響等問題。接著提出了解決的措施：降低平均煙氣流速；降低飛灰濃度；使用鰭片管、螺旋翅片管代替光管；選擇合適的結構及排列方式，減少煙氣中so3的含量；提高受熱面壁溫使之大於煙氣的露點溫度；採用抗腐蝕材料作受熱面等防腐蝕的措施。It is difficult to replicate hinge moment accurately and rapidly because surplus torque affect dynamic performances of load simulator system badly with large intensity and continuous variation derived from variable velocity of rudder system
這種干擾作用具有強度大、隨舵機速度不同連續變化的特點，它的存在嚴重影響了負載模擬器的動態性能，使得加載系統難以準確、快速地復現空氣動力鉸鏈力矩。The results show that the aerodynamic stability of long - span suspension bridges is significantly influenced by the static wind action, whereas the spatial non - uniformity of wind speed and the cable ' s wind load have basically no influence on it
結果表明：靜風效應對大跨徑懸索橋空氣動力穩定性的影響比較重要，但是風速空間非均勻分佈和纜索風荷載等因素對大跨徑懸索橋的空氣動力穩定性基本沒有影響。By taking runyang bridge over the yangtze river as example, effects of some factors such as the static wind action, wind speed spatial non - uniformity, and the cable ' s wind load on the, aerodynamic stability of the bridge are investigated analytically
以潤揚長江大橋為例，通過分析揭示了靜風效應、風速空間分佈的非均勻性以及纜索風荷載等因素對大跨徑懸索橋空氣動力穩定性的影響。Phenomena, such as flow field confusion and slagging etc. have occurred in the practical process of cyclone burner for coal - water slurry ( cws ) firing, on this basis a study on aerodynamic field of cws cyclone burners had been carried out through cold state experiments in the laboratory, then the influence of burner ' s structure properties upon the said flow field had been carried out, and expected to find more reasonable structure of the burner was found. in my study the focus is on the affection of cone and cyclone intensity in the condition of infinite and finite fields
本文著重研究現有水煤漿旋流燃燒器的旋流葉片角度，一次風擴口的長度以及角度對旋流燃燒器出口流場的影響，通過流場的比較，以期得到性能較好的旋流燃燒器。考慮到水煤漿燃燒器中心的水煤漿射流對于其空氣動力場的影響，本文在實驗室冷態實驗研究的基礎上，模擬水煤漿射流，研究其對燃燒器空氣動力場的影響。分享友人