空氣擾動法 的英文怎麼說

中文拼音 [kōngrǎodòng]
空氣擾動法 英文
air turbulence method
  • : 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動詞1 (擾亂; 攪擾) harass; trouble 2 (客套話 因受人款待而表示客氣) trespass on sb s hospital...
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  • 空氣 : 1 (大氣) air; atmosphere 2 (氣氛) atmosphere 3 (氣閘) air brake4 pneum ; pneumo ; pneumat ;...
  • 擾動 : excitation; turbulent motion; turbulence; destabilization; [物理學] perturbation motion; [地質學]...
  1. It is studied that the formation mechanism of taylor bubble and its control method in gas - liquid two - phase flow, which affects the pressure balance and mechanical driving efficiency in the flow of petroleum engineering. experiments show that the formation of taylor bubble in gas - liquid two - phase flow is due to the intensive congregation and amalgamation of small bubbles driven by void fraction waves and that the highly turbulent flow is able to restrain this formation. thus, the flow regime transition may be checked by increasing the flow turbulence and controlling the disturbed frequency

    對大管徑-液兩相流中嚴重影響壓力平衡與機械驅效率的段塞流生成機制和控制方進行了研究,實驗證明段塞流的形成是由於隙率波的大幅度增長使泡高度集中,並形成聚並所致。強湍流運可以抑制taylor泡的形成。因此,通過強化湍流或控制頻率可以對泡聚並起明顯的抑制作用。
  2. In this experiment, the quantity change of partial pressure of main elements is given by longtime dynamic measuring of metal dewar exhausting with quadrupole mass spectrometer ( qms ), the results show that exhausting technology influences outgassing of dewar vacuum vessel, this paper gives the theory, equipment, method, data and disturb fators, we also give primary investigation how the main gases affect the vacuum integrity of dewar and point out the possible ways which can be applied to present technology

    摘要實驗研究用四極質譜儀對金屬杜瓦排進行長期態監測,跟蹤內部主要體成分的分壓強的大小變化,得出排工藝對杜瓦內表面放量大小的影響,介紹了實驗的原理、裝置、方、數據和干因素,對影響杜瓦真度的主要體成分進行了初步研究,提出改進杜瓦排工藝的可能方向,對工藝處理具有實際意義。
  3. 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;利用不帶流片的矩形直通道、帶順排流片矩形直通道、帶叉排流片、帶傾斜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、壓力場、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,努謝爾數和阻力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。
  4. The main research contents of the physical design include : presenting the domestic and international status of space weather and expanding on the need and the importance about the space weather forecast ; sorting the disastrous space weather and discussing their effects and adapted prediction methods ; analyzing the solar disturbing resources of space weather and the precursor or concomitant phenomena of solar eruption based on the newest observational results ; probing into the radiation principle of solar short - wave ray and presenting the computing methods about solar continuum and line spectrum radiation ; extrapolating physical methods of reconstructing the temperature and the emission measure of coronal plasma ; argumenting the effective observing spectrum for space weather empirical forecast and space weather numerical forecast

    物理設計的主要研究內容包括:分析目前國內國際間天預報的發展現狀及開展間天預報的必要性和重要性;分類討論了災害性間天的種類、影響及目前國際上的預報方:分析了間天太陽源及源爆發的先兆現象或者伴生現象;討論了太陽短波輻射線譜和連續譜輻射強度的計算方:推導了利用望遠鏡多波段的觀測結果反演日冕等離子體溫度、發射量等參數的物理方:論證了開展間天經驗預報和發展數值預報有效的成像譜段。
  5. On the basis of looking up a lot of referenced works, the phenomenon that lateral jet injected into the external air stream surrounding an intercepting missile is analyzed. the effects of jet interaction on forces and moments are described by interaction amplification factor, and the algorithm to calculate the interaction amplification factor is presented, then the motion model and the dynamics model of interceptor are established according to the previous analysis

    根據大量參考文獻的結論,分析了側向噴流射入攔截彈外流的流場特徵,以干放大因子來描述干效應對力和力矩的影響,給出了放大因子的計算方,進一步建立了噴流側向力和力作用下的導彈運學和力學模型。
  6. In this paper, the backward simulation was summarizd at home andabroad, the characteristics of shell nosing were introduced, the theory and scheme of backward simul - ation of shell nosing was constructed, the determined methods of the boundary conditions were put forward in backward simulation for the processes of shell nosing

    論述了推力矢量控制技術是提高導彈性能的核心技術,介紹了常用的三類推力矢量裝置,著重討論了燃舵式和流片式推矢裝置的特點、設計方、性能及其優缺點.在此基礎上,研究了適用於力/推力矢量復合控制的變結構控制系統及其開關函數的切換條件和飛行控制系統框圖.最後綜述了推力矢量裝置在第四代導彈上的應用情況
  7. The prediction of disastrous space weather is a hot topi c among solar - terrestrial physics and high technological fields. we propose that the future forecasting of the physical conditions that the violent solar disturb ance causes at the earth by propagating in solar wind depends heavily on the num erical method. this paper analyses the existing problems we are facing in the num erical prediction of disastrous disturbance events in solar - terrestrial space, an d then gives some suggestions for future study. for such a purpose, a six step sol ution method is developed to deal with one - dimensional symmetric interplanetary shock dynamics. it should be point out that that initialization of fully self - con sistent 3 - d mhd codes considering the solar - interplanetary - geomagnetic coupled r elations with initial - boundary values at 1r of the global output of solar pl asma and magnetic field using available solar observations is an essential requi rement in space weather operational codes for forecasting purposes

    間災害性天的預報是日地物理學界及高科技領域的熱門話題.未來預測太陽劇烈所造成的行星際風暴到達地球間的狀態勢必藉助于數值方.淺析了間災害性事件數值預報存在的問題及未來設想,針對這一目的對一維球對稱問題提出了處理行星際激波的6步求解方,指出未來間災害性事件預報模式應是一個基於三維的以真實太陽風為背景自洽建立起來的、以太陽等離子體輸出及磁場全球結構為初邊值、太陽、行星際、地磁因果耦合模式
  8. This research is aim at putting forwarding laser wavelength scanning interference testing method. processing and analyzing instantly - read interference pattern corresponding with continuous varying wavelength, the method overcomes the following disadvantage. for example, the longer referenced and measuring optical circuit in big - scale high - accuracy asphere testing, and the sensitive interferential system to the disturb, such as the oscillation of worklable, dithering of air, and so on

    研究的目的主要是針對大型高精度非球面面形檢測中干涉儀的參考光路和測量光路較長,干涉系統對工作臺振等外界干因素的影響敏感,干涉圖不穩定等問題,提出了激光波長掃描干涉測試方,該方通過對瞬間讀取的、與連續變化波長對應的干涉圖的處理和分析,克服了上述缺點,為大型高精度非球面的檢測提供了一種適用的方
  9. The paper studies mainly a new kind of measure method of aspheric surface - laser wavelength - scanning interference testing. this research is aimed at putting forwarding laser wavelength scanning interference testing method. processing and analyzing instantly - read interference pattern corresponding with continuous varying wavelength, the method overcomes the following disadvantage : the longer referenced and measuring optical circuit in big - scale high - accuracy asphere testing and the sensitive interferential system to the disturb, such as the oscillation of worktable, dithering of air, and so on

    研究的主要目的是針對在大型高精度非球面面形檢測中干涉儀的參考光路和測量光路較長,干涉系統對工作臺振等外界干因素的影響敏感,干涉圖不穩定等問題,提出了激光波長掃描干涉測試方,該方通過對瞬間讀取的、與連續變化波長對應的干涉圖的處理和分析,克服了上述缺點,為大型高精度非球面的檢測提供了一種適用的方
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