湍流尺度 的英文怎麼說

中文拼音 [liúchǐdù]
湍流尺度 英文
scale of turbulence
  • 湍 : [書面語]Ⅰ形容詞（湍急） rapid; rushing; torrential; swiftⅡ名詞（急流的水） rapids; rushing waters
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 尺 : 尺名詞[音樂] （中國民族音樂音階上的一級 樂譜上用做記音符號 參看「工尺」） a note of the scale in ...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 湍流 : 1 （急流） swift current; rushing waters; torrent; rapids 2 [物理學] turbulent flow; turbulence; ...
  1. In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking

    在第一部分的工作中，利用全隱歐拉格式和全球熱層-電離層-中間層-電動力學環流耦合模式（ time - gcm ） ，對重力波的非線性傳播及其在傳播過程中對中高層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬，結果表明，從對流層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化，大氣的非等溫結構加速了重力波在中層頂區的破碎，重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。
  2. Meridional heat transfer by large-scale eddies is most significant in the upper troposphere of middle latitude.

    大尺度湍渦的子午線熱輸送在緯度對流層上層是最重要的。
  3. Meso - scale model ; turbulence parameterization ; turbulence kinematic energy

    中尺度模式湍流參數化能量閉合
  4. The non - local turbulence parameterization, i. e., transilient theory was used in the host model mm4 to simulate the turbulent activities of the atmosphere

    在中尺度區域模式mm4的基礎上對其中的湍流參數化方法作了改進，嘗試用非局地閉合方法代替局地
  5. Wavelet analysis of detecting multi - scale coherent structures and intermittency in wall turbulence

    子波分析檢測壁湍流多尺度相干結構及間歇性
  6. Experimental investigation of multi - scale eddy structures ' intermittency in turbulent flow using probability density function of wavelet coefficients

    用局部平均速度結構函數檢測湍流邊界層多尺度相干結構
  7. The effects of the different tripping size were not alike, 20 % tripping annulus was the best size for a pipe flow to obtain fully developed turbulence in the experiment. 8

    不同尺寸的擋環對流動中心處相對湍流強度的影響不同，實驗結果表明， 20擋環是形成充分發展圓管湍流的最佳尺寸。
  8. The two - equation turbulence models can be thought to consist of two more or less separate parts : the scale determining model, which provides scalar information about the turbulence, and the constitutive model, which determines the reynolds stress tensor

    所涉及到的兩方程湍流模型一般包含兩部分：一是尺度標定模型，它給出了湍流的標量信息，如兩方程模型的尺度因子，或者。
  9. Extended self - similar scaling law of multi - scale eddy structure in wall turbulence

    壁湍流多尺度湍渦結構推廣的自相似標度律
  10. Measurement of turbulent boundary layer over the grooved - surface

    小尺度溝槽面邊界層湍流參數的測量
  11. Based on theoretical analysis, microbubble drag reduction is due to structure change of turbulent boundary layer caused by the microbubbles. experiments testify microbubble drag reduction for turbulent boundary layer, as well as bubble size, main flow velocity, etc. affecting the reduction ; with proper flow field model, turbulent model and difference scheme, numerical methods simulate the effect of boundary layer and bubble numbers on dray reduction

    理論分析提出微氣泡降阻機理在於其引起湍流邊界層結構的變化；實驗證明了微氣泡對湍流邊界層的降阻作用以及氣泡尺度、主流速度等對降阻作用的影響；數值方法利用適當的流場模型、湍流模型和差分格式，模擬邊界層和氣泡數等對降阻的影響。
  12. Internal waves are a kind of bridge relating the diapycnal mechanical mixing to external sources of mechanical energy : first, internal waves are driven by wind stress and barotropic tide so that large amount of mechanical energy are transported to abyssal ocean with propagation of internal waves ; second, the mechanical energy can directly be cascaded to mixing through instability and breaking of internal waves

    內波是外界提供的機械能與混合之間聯系的橋梁之一，一方面風和潮汐通過激發內波，將能量向深海和大洋內區傳遞，另一方面，內波的不穩定和破碎直接將機械能串級到小尺度湍流混合中去。開展傾斜地形上內波的傳播以及內潮的產生等方面的研究對海洋混合過程的參數化以及混合對大洋環流的影響等方面的研究具有重要的科學意義。
  13. Refined grids were utilized in a large - eddy simulation model for obtaining high - resolution planetary boundary data and analyzing surface layer turbulence. simulation results showed that refined meshes reduced turbulent contributions of subgrid scales, sensitivity of simulation results to sgs parameters decreased, and features of the whole boundary layer were explicitly resolved better. results also revealed flux - profile relationship correctly in surface layer and a good agreement of turbulent velocity characters with observation. therefore, it concluded that the les method was able for simulation of surface layer flow and turbulence, and might be used for further applications

    採用加密網格的大渦模式獲取邊界層風溫場的高解析度模擬結果，並據以分析近地面層大氣的湍流特性。結果表明，較小的網格尺度使次網格湍流貢獻率大為降低，模式計算結果對次網格參數的依賴性減小，邊界層整體特徵得到更好的反映。同時，模擬出的近地面層通量廓線關系及湍流速度特徵與實際觀測結果吻合甚好，表明模式具有反映近地面層平均運動和湍流特性的能力。
  14. Experimental investigation of drag reduction mechanism over compliant wall and multi - scale coherent structure control in turbulent boundary layer

    柔性壁面湍流減阻機理與多尺度相干結構控制的實驗研究
  15. Remote sensing techniques have demonstrated their potential for measurements of soil temperature, vegetation canopy and so on. however, what is very difficult that uses reasonably both remote sensing data and ground data in calculating the energy, mass. radiation and momentum exchanges at land - atmosphere interactions, let alone apply in practical works

    但是，如何將遙感觀測資料和常規資料結合起來研究輻射傳輸、湍流交換以及地表水的通量等局地尺度特徵量是一難題，很多學者都已做了大量的工作，取得了相當鼓舞人心的結果，真正能實際應用的成果卻很少。
  16. Wavelet analysis of the relation between the fluctuating wall pressure and turbulent coherent structures

    用子波系數概率密度函數研究湍流多尺度結構的間歇性
  17. According to the traditional rytov method, the theory model of modified rytov method is given for plane wave and spherical wave propagation in the atmospheric turbulence, and the characters of optical scintillation for waves propagation along horizontal paths is studied, the inner scale effect is considered, especially. then, the results, calculated by the modified rytov method, is compared with the experiment measurement, it shows that the modified method is suitable in moderate atmospheric turbulence

    本文介紹了光波在湍流大氣中傳播的弱起伏和強起伏理論，從經典弱起伏理論出發，給出了光波在水平傳輸時的修正rytov方法理論模型，分析了在考慮湍流內尺度的影響下平面波和球面波入射時的閃爍特性，在中等湍流區計算結果與最近實驗結果符合得較好。
  18. According to the theory of optical wave propagation in the slant path and the itu - r turbulence structure constant model, which is altitude dependent and proposed in 2001, the modified rytov method is extended to be applied to study on the problems, which waves propagate in the slant path. the scintillation index as a function of the rytov variance is obtained from weak to strong fluctuation regions with plane wave and sphere wave incidence, respectively

    根據斜程傳輸理論和2001年提出的itu - r湍流大氣結構常數模型，將修正pytov方法推廣應用於斜程傳輸問題研究，得到了平面波和球面波斜程傳輸時的閃爍指數，分析了湍流內尺度、近地面風速等參量對閃爍指數的影響。
  19. If the two - equation turbulence models employ a linear relationship between the reynolds stress and the mean strain - rate tensors, this relationship is known as the generalized boussinesq model, the two - equation models can be extended for a wider range of applicability by developing more advanced nonlinear algebraic relations between the stress tensor and the mean - velocity gradient and the turbulent scales, this is known as explicit algebraic stress models ( easm )

    另一個是構成模型，即決定應力張量、應變率張量和兩個湍流尺度因子之間的函數關系式，它決定了雷諾應力。如果構成模型是線性的，則為boussinesq渦粘模型（ evm ） ，如果構成模型是非線性的代數關系式，則為顯式代數應力模型（ easm ） 。
  20. Various turbulence conditions, ranging from weak to strong, are considered as well as the dependence on turbulence strength, propagation length, wavelength, and the inner scales of turbulence are presented

    計算結果表明，相位不連續點的數目不僅與描述光強起伏量的大氣湍流強度、傳輸路徑長度和傳輸光的波長有關，而且還與湍流的內尺度有關。
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