紊流段 的英文怎麼說

中文拼音 [wènliúduàn]
紊流段 英文
water-break
  • 紊 : 形容詞（紊亂） disorderly; confused
  • 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...
  • 段 : Ⅰ量詞（部分） section; segment; part; paragraph; passage Ⅱ名詞（姓氏） a surname
  • 紊流 : burble
  1. Through flume experiment and numerical simulation, preliminary work on computation of water surface profile in regulation river reach, numerical simulation of flow with single spur dike in flume, and 3 - d numerical solution of flow around spur dikes group are carried out in this paper

    本文通過模型實驗和數值模擬相結合的研究方法，在整治河段一維水面曲線計算，單丁壩繞流數值模擬，紊流數學模型在航道整治工程中的應用以及丁壩群附近水流的三維流動特性等方面做了一些初步研究。
  2. In the turbulent flow, the fluid ’ s physical parameters has the stochastic change along with the time and the space, it is very difficult to carries on its rate process ’ s precise computation and the simulation with mathematics method, but unstable condition navier - stokes equation regarding open canal current of water transient motion suitable

    閘后水流經過加糙的海漫段時，其水流狀態屬明渠紊流。流體中的各種物理參數，都隨時間與空間發生隨機的變化，很難用數學的方法對其運動過程進行精確計算和模擬。
  3. 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。
  4. It is a reliable instrument for the measurement of the coherent structure in turbulence. an improved 2 - d ptv was developed based on previous research experiences, which can be used to measure the trajectories of particles motion. for the experimental study on the particle motion in the dilute solid - liquid two - phase flow, especially for the motion characteristics and dynamic characteristics of coarse particles in water, this kind of system was proved to have great advantages

    利用該系統可獲取大量的統計樣本並進行計算機快速分析，為明槽紊流相干結構的試驗研究提供了一種嶄新的測量手段；在前人工作的基礎上，開發了一種能夠測量水流中顆粒運動軌跡的ptv系統，該系統具有可靠的精度，能同步測量全剖面的顆粒瞬時運動信息，為顆粒運動特性及動力學特性的試驗研究提供了強有力的手段。
  5. Momentum integral equation of turbulent boundary layer on ogree section of spillway dam in considering the gravity and centrifugal force

    考慮重力及離心力的溢流壩反弧段紊流邊界層動量積分方程
  6. A three - dimensional - acoustic doppler velocimeter is used to measure the velocity components of the flow field in all three coordinate directions for different discharge and measurement site. the influence of measurement site and the depth / vegetation height ratio on the measured velocity profile and turbulence intensity and the renolds stress is analyzed. the characteristics of the measured velocity distributions and the results of the previous investigators are used to select an analytical expression for the shape of the velocity profile

    利用三維超聲波多普勒流速儀（ adv ）量測不同位置、不同流量下的瞬時流場。分析了測點位置和水深與植被高度比對時均流速分佈的影響。本文還給出了種樹段紊動強度及雷諾應力的垂線分佈。
  7. In this paper, the spatial structure of the low - speed streaks and particle motion in the near wall region of turbulent open channel flow were observed on the side and bottom of a water flume, respectively, using flow visualization and image processing techniques

    本文以試驗研究為主要手段，採用流動顯示和圖像處理技術，從水槽底部和側面兩個方向測量，分別對明槽紊流近壁區的帶狀結構及顆粒運動特性進行了系統的試驗研究。
  8. The descending of the airplane, similar to the climbing, is operated by stages. flying through clouds is inevitable during descending, and the airing convection caused turbulence

    飛機的下降與上升一樣，是分段進行，下降時產生的顛簸可能是紊流造成的，因為在下降過程中，常常不可避免地要穿過雲層。
  9. Based on previous study of pollutant dispersion in vertical direction, an empirical formula for determining the mean value of turbulence viscosity coefficient in numerical simulation of tides in vertical direction was worked out and applied to 3 - d numerical simulation of tides for changxing island reach in yangtze river estuary

    摘要在已有污染物垂向擴散過程研究的基礎上，提出了確定潮流數值模擬中垂向紊動黏性系數的垂線平均值的經驗方法，並將此方法應用到長江口長興島段的潮流三維數值模擬中。
  10. The standard k - e model is adopted to simulate the flow of practical channel regulation projects. the numerical results show that the velocity distribution of flow in the regulation project river reach are mainly controlled by the geometries of natural river

    最後將標準k一:紊流數學模型應用於實際航道整治工程應用中，引入相應的邊界條件，數值模擬了整治河段水流的三維流動過程。
  11. In this paper we do the rigidity model wind tunnel test in the arch & sci academe in guangdong provience to get some datas to apply on the design of the space truss

    在廣東省建築科學研究院的風洞中使用大試驗段進行紊流流場模擬試驗，進行剛性模型的風洞試驗。
  12. In city, because the occupied area of the urban sewage pumping station is usually limited, the length of the forebay is inclined to be short and the diffusion angle in flow direction is big accordingly, which causes bad flow pattern, such as backflows, vortices, etc. the bad flow pattern will make the efficiency of the pump unit drop

    城市排污泵站由於條件的限制，前池一般面積較小，擴散角較大，擴散段較短，因此水流進入前池后突然擴散，流態紊亂，易行成迴流、漩渦等不良水流流態，從而影響水泵的工作性能。
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