紊動 的英文怎麼說

中文拼音 [wèndòng]
紊動 英文
eddy motion
  • 紊 : 形容詞（紊亂） disorderly; confused
  1. A test analysis of open canal bottom coefficient of roughness anticlimax on turbulent velocity of flow and intensity of turbulence influence

    明渠渠底糙率突減對紊流流速及紊動強度影響的試驗分析
  2. The effect of groyne length and layout on water surface is analyzed in the paper. based on the results of simulation and experiment, the local energy loss of the flow due to the groyne is studied. consequently the surface variation and height of damming are also analyzed

    論文分析了丁壩長度與布置對水面線的影響，根據流場、紊動場模擬結果和實驗結果研abstract究丁壩造成的水流局部能量損失，並對水面變化和丁壩奎水高度進行了分析。
  3. The way to get ko was given in this paper. by this way, the turbulence control equations were constructed from reynold equations with static pressure supposition and boussinesq ' s turbulence viscidity coefficient supposition and the salinity transportation equations, which are representative of the matter transportation equations, are given. the integrated deduction and corresponding boundary conditions are also given

    根據上述思想，從雷諾方程出發，採用靜壓假定和包辛內斯克的紊動粘性系數假說，建立了新坐標系中的紊流控制方程組，同時給出了對物質輸運過程具有代表性的鹽度輸運方程、相應的邊界條件及完整的推導過程。
  4. The nature of sand movement depends on the particle size, shape, and specific gravity in respect to the associated velocity and turbulence.

    泥沙運動的性質取決于顆粒的大小、形狀和比重並與流速和紊動有關。
  5. By using the three - dimension acoustic doppler velocimeter to measure velocities of flow in an ecological river before and after arrangement of cropping loops, the velocity distribution, turbulence intensity and reynolds stress before and after arrangement of cropping loops are compared

    摘要採用三維超聲波多普勒測速儀對河道生態修復中種植圈布設前後的工況量測，比較了布設種植圈前後的流速分佈、紊動強度和雷諾應力的變化。
  6. By performing fourier transformation, the relationship between the turbulent intensity of the particle and that of the carrier fluid was obtained which makes clear that particle size, specific gravity, velocity gradient, and the characteristic frequency of energy - containing eddies are four basic influencing parameters. it is proven theoretically that under certain conditions, the stream - wise and transverse particle turbulent intensities exceed those of the carrier fluid. based on the equations of two - phase flow, the presence of fine sediment suspension is shown to attenuate the turbulent intensity of the water

    通過對細小顆粒在剪切流場中運動方程的fourier分析，得到了顆粒脈動強度和流體脈動強度之間的定量關系，表明顆粒粒徑、顆粒密度、流速梯度以及紊動場含能旋渦的特徵頻率是影響顆粒脈動強度的主要因素，首次從理論上證明了在一定條件下，顆粒在縱、垂向的脈動強度均會超過相應的流體脈動強度，為已有的實測資料提供了合理的解釋。
  7. According to the distribution of the turbulence kinetic energy and turbulence dissipation rate in the whole flow field, the mechanism of energy dissipation of stepped spillway is analyzed

    本文首次從紊動能和紊動耗散率在整個流場的變化規律出發，分析了階梯的消能機理。
  8. By the three dimensional numerical simulation of a project case, the distribution of pressures, turbulence kinetic energy and turbulence dissipation rate in the gentle slope spillway overflow are obtained

    通過對工程實例的三維數值模擬，得到了緩坡階梯壩面上的水壓力、紊動能和紊動耗散率的分佈規律。
  9. 3. a three - dimensional - acoustic doppler velocimeter has been used to measure the velocity and turbulence in a compound channel with vegetated and unvegetated flood - plains. particulary in the interface region between main channel and floodplain. the distribution in three coordinate directions of velocity and turbulence intensities and the renolds stresses are presented. the momentum transfer at the main channel flood - plain interface can be described as an apparent shear stress which can be quantified as a function of the local turbulence at the interface

    採用adv對灘地種樹前後灘槽交界區域的流速場進行了量測。分析了灘槽交界區域的垂線流速、紊動強度和雷諾應力的變化。將灘槽交界的動量傳遞描述為一表觀應力，這個表觀應力可以看作是交界面處的脈動函數並將其定量化。
  10. In the tidal estuary, the current is complex, and the flow is oscillatory. some experiential formulation has presented to calculate the vertical turbulent mixing coefficient. on the base of analysis of the hydrodynamic in the estuary, the theoretical equation, which describes the distribution of the space and time of vertical turbulent exchange coefficient, has developed, the equation has applied to the practice

    潮汐河口水流呈往復振蕩運動，本文在分析潮汐河口水動力特性基礎上，考慮了慣性力及重力等項的影響，通過理論推導得到潮汐河口垂向紊動交換系數的空間分佈及時間分佈的計算公式，以及垂向平均紊動交換系數的時間分佈的計算公式，並將其應用於潮汐河口的實際計算中。
  11. On every step, the maximum of the turbulence dissipation rate is at the step tip. because the interaction between the skimming flow and the step tips causes the energy to dissipate continuously, so that the step can have better energy dissipation results

    在每個階梯上，紊動耗散率的最大值出現在階梯的突角處，正是由於滑移主流與階梯突角之間的相互作用使能量不斷耗散，從而使階梯具有良好的消能效果。
  12. The shear stress of particles is about 5 % of the turbulent shear stress of the water

    顆粒剪切應力的數值約為水流紊動剪切應力的5 。
  13. To analyze the hydrodynamic structure of the estuary, 3d k - numerical model with curvilinear fitted coordinate has developed. the distribution of velocity and turbulent exchange coefficient at different time has obtained and analyzed

    紊流模型對測驗河段進行計算，得到特徵時刻該潮汐河口段的水力要素及垂向紊動混合系數的分佈。
  14. At the same time, contour stream line, vortex, kinetic energy which are computed are important to investigate complex flow and turbulent flow

    同時得到其它的參數如渦量場、等流函數線、紊動能等，這些參數對復雜流動和湍流有重要的研究意義。
  15. First of all, the vertical mixing law of point source in the river is studied

    首先研究了河流中點源污染物排放的垂向紊動混合規律。
  16. The turbulence intensity is the result of space variation and temporal variation of particle velocity

    顆粒速度的紊動強度為速度的空間變化和時間變化共同作用的結果。
  17. This system of measurement and analysis may prove to be beneficial, to the investigation of turbulent structure of the sediment - laden flow

    這一量測分析系統將有助於對渾永紊動結構的深入研究。
  18. The turbulence intensity of particle velocity decreases when particle size or re increases and increases with the increase of fr

    顆粒紊動強度隨粒徑的增大而減小，隨fr的增大而增大，隨re的增大而減小。
  19. The turbulent intensity and frequency of the sediment - laden flow are less than those of the clear water flow, but the fundamental structure of the flow remains unchanged

    與清水相比較，渾永的紊動強度減小，頻率降低，但基本紊動結構並不改變。
  20. Results show that the longitudinal velocity distribution fluctuates significantly, and that the relative turbulence intensity and reynolds stress have a little increase

    結果表明，布設種植圈后，縱向流速分佈波動明顯，相對紊動強度和雷諾應力均略有增加。
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