氣動力場 的英文怎麼說
中文拼音 [qìdònglìchǎng]
氣動力場
英文
aerodynamic field-
"aerodynamics" defines the pressure fields and loads that exist on a launch vehicle due to the reaction of ambient flow.
「空氣動力學」規定了由於繞流反作用在發射飛行器上存在的壓力場和載荷。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。It is necessary to study the unsteady nonlinear aerodynamic characteristics of a wig flying in air with disturbed waves for the design of high - performance wig vehicle, especially for the subject that how to improve the safety, maneuver ability near sea wave, and economics of the wig flying over sea waves
研究地效翼在風浪擾動氣流場中掠海飛行的非定常氣動力問題，對于高性能地效翼船的設計，特別是對于提高地效翼船在風浪中飛行的安全性，操縱性以及經濟性都是十分重要的。The ejected coolant interacts with the external flow near the endwall and generates aerodynamic and thermodynamic losses in the process. this reduces turbine stage efficiency and together with the consumption of cooling air is detrimental to the overall cycle efficiency
但這種方法中噴射的冷空氣與端壁附近的外流場相互作用產生氣動力和熱動力損失，並且消耗冷卻空氣，從而損害渦輪的整體循環效率。Woodcliff lake, n. j., aug. 16 / prnewswire / - - bmw today announced the launch of the hydrogen 7 pioneer program as it handed over the keys of a bmw hydrogen 7 - - the first hydrogen - powered luxury sedan - - to hollywood actor will ferrell
寶馬汽車公司日前推出了作為市場先驅的裝載液態氫燃料的氫能7系轎車，這是世界上第一款豪華氫氣動力轎車，它的鑰匙已經交給了好萊塢影星威爾?法瑞爾。( 2 ) transient jet - interaction phenomena, challenge project, is analyzed by computational unsteady aerodynamic method. boundary condition of transient jet is established
（ 2 ）將非定常空氣動力學數值計算方法創造性地應用於姿態控制發動機瞬態流場計算。In the end, the situations of work done by aerodynamic forces on blade surfaces when flow - structure is coupled and is n ' t coupled under the same conditions are compared, the result indicates that the work done by aerodynamic forces after the coupling restraint is unloaded has a distinct change
本文最後比較了相同條件下氣固耦合與非耦合時葉表氣動力的做功情況，其結果表明解除耦合約束后氣動力做功有顯著變化，為深入研究振動葉柵流場，必須考慮葉片結構動力因素。This curvature of the flow field alters the pressure distribution and the aerodynamic forces from their values in translational flight.
流場的彎曲使壓力分佈和空氣動力與直線飛行時的值相比發生了變化。In the thesis, most advanced, relative, foreign high - tech has been pursued. feasibility analysis has n ' t been carried out by synthesizing much relative knowledge such as electromagnetism theory, plasma technology, aerodynamics, electronic technology etc until the scheme is confirmed, that is, a uniform, one atmosphere, controllable, glow - charge surface plasma can be generated and flow can be accelerated by changing electric field
本文追蹤目前國外最先進的技術，綜合電磁理論、等離子體技術、空氣動力學、電子技術等相關知識進行可行性分析，確定了研究方案，即利用電流體力學（ ehd ）方法在一個大氣壓下產生高效、均勻、可控的射頻輝光等離子體，同時，通過改變電場促使流動加速。An efficient wind field simulation technique for wind - induced vibration analysis of long - span bridges is first introduced in this paper ， and the statistic characteristics of the simulated wind field are then discussed on this basis ， the time - domain expressions for the buffeting and self - excited forces acting on long - span bridges are further given a simple and practical method is presented for the non - linear parameter identification involved in the calculation of self - excited forces by using the above theory ， the wind field and aerodynamic forces acting on the hong kong ting kau bridge are obtained the time - domain buffeting response analysis of the bridge shows that the analytic results agree quite well with the experimental ones this indicates that the theory presented in this paper has reached a practical level
介紹了一種快速高效的用於大跨度橋梁風致振動分析的風場模擬方法，並對模擬風場的統計性質進行了討論和驗證在此基礎上進一步給出了大跨度橋梁抖振力和自激力的時域表達方式，其中針對自激力計算中涉及的參數識別問題，提出了一種簡單實用的非線性參數識別方法本文採用上述理論，獲得了作用於香港汀九大橋上的風場和氣動力，據此對大橋進行的抖振響應時域分析表明，計算結果與風洞試驗結果吻合良好，說明文中述及的這套理論已達到實用的階段Abstract : on the basis of the analysis about noise sources of the air compressor, it shows that air dynamic noise is primary one. according to the theory of fluid mechanics, the mathematics model of the air compreesor air dynamic noise is found, which shows the relationship between the sound power level and other parameters. the knowing noise of the air compressor " s air dynamic is of low frequencies. the reliable data is provided for the noise and vibration control
文摘:通過對空壓機噪聲源的分析，確認空壓機噪聲源中的空氣動力性噪聲為最強；由流體流場的聲學理論，建立空壓機動力性噪聲源的力學模型，它表明聲功率與其它參數的關系；並知空壓機的空氣動力性噪聲呈低頻特性，這為噪聲及振動控制提供了可靠的依據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。Research of unsteady aerodynamic force and oscillating flow field around cascade on shafting torsional vibration
軸系扭振條件下葉柵振蕩流場研究和非定常氣動力的確定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。The analyses of the calculated current fields, wave fields and suspended sediment distributions under normal or typhoon weather show that the model system can preferably reflect hydrodynamic fields and sediment distributions in the yangtze estuary
分析流場、波浪場以及正常和臺風天氣下的懸沙場的計算結果，表明該模型系統能合理地反映長江河口區域的水動力場和泥沙場的分佈。Passing the cold air - dynamic test, thermal efficiency test and practical running, we can conclude the technology is viable in setting the high temperature corrosion of the water wall tubes of boiler and increase thermal efficiency ect
從冷態空氣動力場試驗、熱態效率試驗和實際運行方面出發，驗證此項技術在解決鍋爐水冷壁高溫腐蝕以及提高鍋爐熱效率等方面的可行性。The modeling considers not only the characteristics of fuel ( including ash composition and melting point ), but also takes into account of the influence of operational conditions ( gas velocity, atmosphere, temperature ) on slagging to avoid the unilateralism of other methods of judgment to the slagging
模型中既考慮了燃料特性（包括灰成分和灰熔點） 、也考慮了運行條件（空氣動力場、氣氛、溫度）對結渣的影響，克服了其它結渣診斷方法的片面性。This will lay the foundation for the thermal performance test, air dynamic field test, dreg characteristic test and determinative test of the main design parameters
從而為生物質成型燃料燃燒設備熱性能、空氣動力場、結渣特性、主要設計參數確定等試驗奠定了基礎。分享友人