湍動 的英文怎麼說

中文拼音 [dòng]
湍動 英文
turbulency
  • 湍 : [書面語]Ⅰ形容詞（湍急） rapid; rushing; torrential; swiftⅡ名詞（急流的水） rapids; rushing waters
  1. By comparing the dry plate pressures drop and distributions of velocities simulated on single valve with those of double valves, it was found that there was intense turbulence in the flow fields around fixed - valve, there were eddy areas between valve side orifices and tray wall, there were eddies above the valves too, these led to the complex behaviors of gas perforating valve, these had a great effect on the gas - liquid mass transfer process. at the same time, in order to prevent the disadvantageous effect of gas between one valve with another on the gas - liquid mass transfer, it was very effective to change the fields of gas perforating valve by folding the edges of valve

    通過對數值模擬得出的單閥和雙閥塔板的干板壓降及流場速度分佈分析對比后發現，固定閥周圍流場存在較強的湍動，閥側孔與塔板壁面區域以及閥體的上方空間存在明顯的渦流區，使氣體穿閥后的行為變得復雜，並對氣液傳質過程產生重大影響；模擬結果表明，為防止和削弱固定閥間的對沖造成的「死區」對傳質帶來的不利影響，通過折邊來改變氣體的氣路是非常有效的，模擬值與實驗值基本得到吻合。
  2. A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )

    採用一維2 . 5階湍封閉混合層模式，根據參數化方法對波浪破碎導致的能量耗散率進行了估計，通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響，計算了不同風應力強迫下的混合層流場結構和湍能量收支（下述給出的結果是取風速為20m s得到的） 。
  3. Strong langmuir turbulence and solar proton electron events

    強朗繆爾湍動與太陽質子電子事件
  4. The ultra - relativistic electron acceleration by langmuir plasmons in laser plasma

    激光等離子體中極端相對論性電子的朗繆爾湍動加速
  5. Heat transfer will worsen if structure parameters of the spring inserts are not fit. the paper think that the mechanism of heat transfer enhances of the spring inserts is the laminar flow lining is thinner because of librating of the spring inserts, accordingly the part of convection is enhanced. but the part of boil is not influenced

    通過彈簧插入物的各個參數對傳熱性能的影響分析，認為彈簧插入物對豎管降膜蒸發傳熱強化的機理主要是彈簧的振動加強了液膜的湍動，減薄了層流內層，從而強化了對流傳熱分量，但對沸騰傳熱分量沒有影響。
  6. In the first part, turbulent motion in convection zone as source to generate alfven waves is studied following lighthill - stein theory, in which the turbulent source was described by nonlinear terms in mhd equations

    就是將mhd方程中的非線性項通過fourier變換轉化為湍動源項，並採用kolmogroff冪律譜來描述對流層的湍動譜。
  7. With piv technology, the flow field was measured to judge the performance of pump sump. by analyzing the pictures of velocity, streamline, turbulent kinetic energy and vorticity, we found that the turbulence was bigger while the ratio of the runoff increased. and the vortices always appeared in the field where the runoff was small

    通過piv試驗，測量了封閉式水泵吸水室內部的流場，以研究該水泵吸水室的性能； （ 2 ）通過分析流速圖、流線圖、湍動能圖和渦量圖，發現了流量比越大，湍動越大，漩渦總是出現在流量較小的一側。
  8. The saffman force does not affect the axial velocity of the flow, while it change the concentration of the particle. the gas - particle two - phase flows in the present of temperature were also numerical simulation

    討論了絕熱、有溫差和添加熱泳力三種情況下的兩相流場，分析了溫度梯度、湍動能、軸向速度和顆粒濃度的變化。
  9. Under considering the impact of bubbles on the turbulence, the k - ? model modified with the presence of microbubbles is employed, postulating the turbulent kinetic energy k and the dissipation rate ? are the properties of continuous phase

    考慮到氣泡對湍流的作用，本文採用了經過氣泡修正的k -湍流模型，並假定湍動能k及其耗散率是連續相的屬性。
  10. The velocity, turbulent intensity, and reynolds stress of the liquid was measured with ldv, while the hold up, velocity of gas were measured with piv

    用ldv測量液相時均速度、湍動速度和雷諾應力，用piv測量含氣率和氣泡運動速度。
  11. The result showed that the hurst exponent of the signal have obvious differences between different flow regime. it increased when flow regime was changed from fixed bed to bubbling bed and more from bubbling bed to turbulent, based on which a new method for identification of flow regime was proposed. to improve the accuracies of identification fuzzy technology was introduced

    為了提高辨識準確率，引入了模糊信息處理技術，提出了流型模糊辨識中隸屬度函數的確定辦法，建立了氣固流化床從固定床、鼓泡床到湍動床的流型判別準則，實驗驗證了該方法有良好的辨識效果，辨識準確率在80以上。
  12. The results showed that the turbulence intensity and turbulent energy of the two - phase flow increased while the transverse velocity decreased in the presence of the temperature difference

    分析已有實驗數據表明：在溫度場存在的氣粒兩相流中，兩相流場的湍流強度和湍動能將會增加而橫向速度將會減小。
  13. Pseudo turbulence induced by spherical bubbles moving in a uniform viscous liquid

    球形氣泡在勻速粘性液體中引起的偽湍動
  14. The variation of sensible heat flux is dominated by air - sea temperature difference. interannual variability of turbulent heat fluxes is examined using svd, eof and mtm methods

    熱帶太平洋enso事件通過對walker環流的調整減小熱帶大西洋itcz區的風速值，湍動熱通量亦隨之減小。
  15. Evaluation results show that the turbulence in convection zone is capable of generating enough wave energy to supply coronal energy lose due to convection and radiation

    利用理論結果的計算表明，對流層的湍動對流完全有可能激發足夠的波能去補充日冕中等離子體對流和輻射造成的能量損失。
  16. The turbulent effects of plasmas in above spectral lines broadening have been calculated primarily. furthermore, as an example, the turbulent region scale that corresponds to the turbulent broadening value of fexiva5303 in corona has been calculated

    進一步以日冕綠線f _ exiv 5303為例，計算了它的等離子體加寬值對應的湍動區尺度，發現與實際日冕尺度相符。
  17. The threshold of autoregressive orders is obtained to identify the flow regimes of bubbling bed and turbulent bed. the accuracies of identification of bubbling bed and turbulent bed are 94. 3 % and 80. 0 % respectively. the arma models of the signals acquired from experiments are constructed

    在此基礎上，利用模型階數進行流型的判別，初步實驗結果表明，所採用流型辨識方法是有效的，氣固流化床中鼓泡床和湍動床的辨識成功率分別為94 . 3和80 . 0 。
  18. Complexity parameter c2, fluctuation complexity parameter cf and algorithm complexity parameter c ( n ) have been adopted to analysis pressure fluctuation signals from a gas - solid fluidized bed, the variation of the three complexity parameters with gas velocity from fixed bed, bubbling fluidization to turbulence fluidization are studied, then compared in order to characterize regime behaviors. it is demonstrated that there exists a phenomenon named " recorded " in the regime transition from fixed bed to bubbling fluidization, the three complex parameters are believed to be a new technique for flow regime identification

    結果表明，起始流化至鼓泡態轉變的過程中，復雜性參數表明氣固體系會進行一種所謂的「重構」現象，這與用k熵表徵起始流化態至鼓泡態之間變化時所得到的結果相一致，並能明確地指示固定床、鼓泡流化及湍動流化等不同流態之間的轉變過程，為流型識別提供了新思路。
  19. The value of width of the density cavity estimated is similar to the experimental result

    結果表明，數值分析仍是探究強朗繆爾湍動真實物理圖像的一個有效途徑。
  20. This phenomenon could be explained by the theory. three dimensional velocity and turbulent kinetic energy were gotten

    同時又從理論上解釋了這一現象； （ 3 ）得到了三維速度以及湍動能。
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