激波擾動 的英文怎麼說

中文拼音 [jībōrǎodòng]
激波擾動 英文
shock-wave disturbance
  • 激 : Ⅰ動詞1 （水因受到阻礙或震蕩而向上涌） swash; surge; dash 2 （冷水突然刺激身體使得病） fall ill fr...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 擾 : 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...
  • 擾動 : excitation; turbulent motion; turbulence; destabilization; [物理學] perturbation motion; [地質學]...
  1. In order to verify the prediction efficiency, 27 interplanetary shock events from january 1979 to june 1982 and 68 interplanetary shock events from february 1997 to january 2000 are used for testing. comparing the results of our disturbance model to those obtained by stoa and ispm, we find that our disturbance model is as good as the other two models, and in some cases even better

    為印證擾動傳播模型的適用性，利用79年到82年間的27個激波事件，以及97年2月到2000年1月間的68個激波事件，對激波到達地球軌道附近的傳播時間進行了預測，並將結果與目前流行的行星際激波事件到達地球軌道時間的stoa和ispm預報模型所得結果進行了比較。
  2. Chapter 2 : characteristics of propagation of ultra - intense laser beam in a partially stripped preformed plasma channel is discussed, in which the relativistic self - focusing effects, together with the perturbed plasma density, is discussed

    第二章：本章闡述了超強激光光束在拋物型部分電離的預等離子體（聚焦和散焦）隧道中的傳輸特性。研究了相對論自聚焦效應和等離子體波引起的密度擾動對傳輸的影響。
  3. Although a dual - mode scramjet ' s configuration is simple and mainly consists of inlet, combustor and wake nozzle, its working process is complicated, especially in the combustor, involving a lot of subjects, including hypersonic aerodynamics, combustion chemistry, etc. the inner flow of a combustor is three - dimensional and complicated, including the interaction of shock wave, deflagration, vortex and boundary layer, and so on

    它涉及到高超聲速空氣動力學、燃燒化學、擴散傳質等多門學科；其內部的實際流動是復雜的三維流動過程，充滿著激波、膨脹波、燃燒波、各種渦系、附面層及其相互之間的干擾，因此，燃燒室問題是整個發動機研究的關鍵所在。
  4. It is shown that the parameters of the flow field are disturbed and a condensation shock is generated due to the sudden release of the latent heat of condensation

    結果表明由於水蒸氣的凝結釋放熱量對流場局部進行加熱，使流場參數發生擾動而產生凝結激波。
  5. In order to predict the arrival time at 1au of interplanetary shocks, a simple model called disturbance model is established here. in this model, the travel time is assumed to be a function of energy that is released from solar explosives, and input pulse longitudinal width, input pulse duration, the interaction of interplanetary shock and background solar wind are also taken into account

    本論文考慮了激波爆發源角寬度、能量、驅動時間、激波速度及其與背景太陽風之間的相互作用，利用流體力學擾動方程建立起一個激波擾動傳播模型，用於研究激波從太陽傳播到地球軌道附近（ 1au處）所需要的時間問題。
  6. The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream. as the eddy impacts the impinging wall, a wave of pressure disturbance with certain frequency is induced. this wave then propagates to the upstream with high speed, and results in the overlap and amplification of the waves when the frequencies of them are close with each other

    當前噴嘴流束中的不穩定擾動波在穿過腔內的剪切層時，剪切層對其有選擇放大作用，形成渦環結構，剪切流動中渦環與碰撞壁撞擊，在碰撞區域產生壓力擾動波並向上游反射，在上游剪切層分離處誘發新的擾動的產生，當新擾動與原擾動匹配時，射流上游就被不斷地受到周期性激勵，腔內就產生流體自激振蕩並在後噴嘴出口形成脈沖射流。
  7. The some fire control system is an advanced multi - senor short range air defense system, which integrated both x and ka bands searching and tracking radars, laser range finder, combined the control computer of subsystem with the master computer, and applied the technology of data fusion

    摘要某火控系統集兩個頻率波段的搜索雷達、跟蹤雷達和電視跟蹤器、激光測距機於一體，分系統控制處理計算機與系統主計算機相結合，採用了數據融合技術，是一部多傳感器集成的現代化防空系統，具有搜索性能好、反應時間快、抗干擾能力強、自動化程度高、使用性能好等特點。
  8. The effects of the atmospheric turbulence disturbance for free - space laser communication systems are analyzed in the paper, and the correction of low - order modes with adaptive optics system for wave - front error are also discussed

    本論文分析和論述了大氣擾動對空間激光通信的影響以及利用自適應光學系統校正低階模式波前誤差理論。
  9. The velocity distributions, the relative mach number distributions and the flow trace distributions are visualized, and the reasons, which cause bad aerodynamic losses and make the flowfield complicated, are analyzed, including wake, secondary flow, separated flow and the interaction between shock and boundary layer

    顯示壓氣機內的速度場、相對馬赫數分佈及流動跡線分佈等，並分析造成嚴重損失及使流場趨于復雜紊亂的原因，包括尾跡、二次流、分離流及激波/附面層干擾等現象。
  10. On the western side of the central normal of the disturbance source in the heliospheric equatorial plane, the double shock pair structure is more evident, and the longitudinal span is wider than those on the eastern side

    雙重激波對在子午面內相對擾動源中心法線基本對稱，而在赤道面內則不對稱：擾動源中心法線西側雙重激波對結構更為明顯，所跨經度范圍寬于東側。
  11. The flow field that results from the interaction of lateral jets injection into supersonic flow over projectile has complicated shocks wave patterns, which include regions of shocks and expand waves, and the lateral jet interaction also effects base flow of projectile

    彈丸側噴流與繞流的相互干擾形成了包含噴口前激波、再附激波以及沿噴流邊界發展的膨脹波等復雜的波系結構，並延伸影響到彈底部流動。
  12. At the same time, the possibility of using nonlinear optics in widening the detecting wave band of hartmann - shack wavefront sensor is exploringly discussed. adaptive optics guarantees the beam quality of laser projecting system. beam cleanup, atmospheric turbulence compensation and correction of any disturbance and fabrication error in the light way are required to promise a near diffraction beam, but normal adaptive optics system can only correction one of them

    自適應光學進行光束大氣傳輸波前畸變校正時，要求系統必須能進行光束凈化和校正大氣湍流造成的波前畸變，並且能夠同時有效地克服發射系統製造誤差、重力變形以及光路內部氣體擾動的影響，得到接近衍射極限的輸出激光光束。
  13. Abstract : since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem ， an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic

    文摘:提出壓電諧振濾波器不能很好地濾除高頻諧波的問題，結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率，從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題，提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性，具體分析了改進型雙端固支微梁靜電激勵諧振濾波器，理論推導證實基於雙端固支微梁的各階振型正交的原理，通過適當調整激振電容的間距，雙端固支微梁的高階振動模態受到很好的抑制，因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過
  14. Since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem ， an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic

    提出壓電諧振濾波器不能很好地濾除高頻諧波的問題，結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率，從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題，提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性，具體分析了改進型雙端固支微梁靜電激勵諧振濾波器，理論推導證實基於雙端固支微梁的各階振型正交的原理，通過適當調整激振電容的間距，雙端固支微梁的高階振動模態受到很好的抑制，因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過
  15. 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

    空間災害性天氣的預報是日地物理學界及高科技領域的熱門話題.未來預測太陽劇烈擾動所造成的行星際風暴到達地球空間的狀態勢必藉助于數值方法.淺析了空間災害性擾動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步求解方法，指出未來空間災害性擾動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
  16. We analyzed the meso - scale disturbance field and found that the development and spread of inertia - gravity wave had a close relationship with the development and spread of the rain belt. at the initial stages of precipitation, convection instability was strong in the low level above rain region. convection instability could inspire inertia - gravity wave

    對中尺度擾動場分析發現重力慣性波的發展和傳播與雨帶的發展與傳播有密切的聯系：在降水初期，雨區上空低層的對流不穩定較強，對流不穩定可激發出重力慣性波。
  17. So it is important for exploring the stealth vehicle to investigate the interactions and all kinds of plasma waves. the interaction between a body in space and its plasma environment is one of the basic problems in space plasma physics

    這種密度擾動，在電離層中可以激發起各種等離子體波，研究這種相互作用及各種等離子體波，對探測塗有各種雷達波吸收材料的隱身飛行體有著重要的意義。
  18. 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動和空氣抖動等外界干擾因素的影響敏感，干涉圖不穩定等問題，提出了激光波長掃描干涉測試方法，該方法通過對瞬間讀取的、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法。
  19. Finally, the two dimensional flow in the diffuser is calculated, the results show that the change of ma makes an effect to the performance of the diffuser. owing to the accretion of ma, the action of oblique shock waves and the boundary layer pricks up, the flow separates from the wall where the shock waves impinge on the boundary layer more quickly, the cluster of diamond shock waves becomes larger. moreover, by comparing the change of flow field under different structure parameter, it is found that the augment of length of constant area section alter the structure of fluid field little, a smaller area ratio and larger angle of compression section make the diffuser working better

    最後，針對擴壓器中的二維流場進行了數值模擬，結果表明馬赫數對擴壓器性能影響較大，隨著馬赫數的增大，擴壓器管道內激波-附面層干擾加劇，流動從附面層分離相應加劇，激波串數目增多;通過比較不同結構參數下的擴壓器內流場，發現等直段長度的變化幾乎沒有改變流場結構，只是對局部流場稍有影響，並且在其它參數不變的情況下，一定范圍內減小面積比a2 / a1和增大收縮角有利於擴壓器性能的提高。
  20. Abstract : a numerical investigation of three - dimensional separated flows about a hemisphere - cylinder is presented. the analysis has been restricted to transonic and laminar flows. results are given for the complex flow field structures including shock, boundary layer, separated flow, vertical flow and their mutual effects. the topological structures of the separated flow is shown

    文摘:本文數值模擬了半球柱在跨音速、中等攻角時的粘性層流繞流，研究了流場中的復雜三維分離形態結構，其中包含流向與橫向的主分離、二次分離、以及激波邊界層的相互干擾，解釋了在球柱接合部精確捕獲的壓力波動與流動主分離、二次分離的影響關系，這個現象是前人的計算5 ， 6未捕捉到的。
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