邊界層水流 的英文怎麼說

中文拼音 [biānjiècéngshuǐliú]
邊界層水流 英文
boundary-layer flow
  • 邊 : 邊Ⅰ名詞1 （幾何圖形上夾成角的直線或圍成多邊形的線段） side; section 2 （邊緣） edge; margin; oute...
  • 界 : 名詞1 （相交的地方; 劃分的界限） boundary 2 （一定的范圍） scope; extent 3 （按職業、工作或性別等...
  • 層 : i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 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...
  • 邊界 : boundary; frontier; border; borderline; edge range line; periphery
  • 水流 : 1. （江河） rivers; streams; waters2. （流動的水） current; water flow; fluent; flow; [水文] stream current
  1. According to different flow patterns, a new transferring rule for oil - water two phases system flowing model in pipes is built in including the stability rule for stratified flow patterns and transferring border and anti - phase border for deconcentrating patterns and mixture patterns

    根據管內油、水兩相流流型特徵，建立了新的油、水兩相管流流型的轉換準則。它包括：分層流型的穩定性準則、分散流型和混合流型的轉換邊界及反相界線。
  2. In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design

    第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析，給出了離心泵葉片型線的參數方程；它是以葉片安裝角為參變數，以引入的速度系數k _ v作為中間因子，將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實，在離心泵葉片型線的設計過程中，它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力，或者說，離心泵型線的設計是其水力設計的核心。
  3. Topics include : molecular and turbulent diffusion, boundary layers, dissolution, phase partitioning, bed - water exchange, air - water exchange, settling and coagulation, buoyancy - driven flows, and stratification in lakes

    探討課題計有:分子和紊流擴散、邊界分層、溶解、相之間的分割、底床與水間的交換作用、空氣與水間的交換作用、沉降和混凝、浮力流以及湖泊分層作用。
  4. According to non - newtonian fluid mechanics theory and mathematical method, conbined with plunger moving property, the hypothesize fluid is imcompressive, hydraulic radius of flow of liquid in crevice is very little, and it is laminar flow, the flow is treated fixed continuous flow at every instant position of plunger, equation of motion and boundary condition were set up in condition of concentric and eccentric of pump barrel and plunger

    運用非牛頓流體力學理論和數理方法，結合抽油泵柱塞運動特點，假設液體為不可壓縮的，液體在縫隙中流動的水力半徑很小，呈層流流動，柱塞在每一位置的瞬間，流動做定常流處理，建立了泵筒與柱塞同心和偏心兩種情況下運動方程和邊界條件，引入無量綱坐標、無量綱速度和柱塞與泵筒偏心配合時的縫隙高度，並給出縫隙流流速、流量的解析解。
  5. Separation and increased sedimentation are common phenomena in the projects of water conservancy, sea - route and power station

    考慮到迴流是水流分離現象造成的，而分離現象與邊界層的存在有關，所以可以從控制邊界層的思路出發來解決這個問題。
  6. The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th, june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa, subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average, this is the rainy season for the south of china, but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability, but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain

    作為對比，本文還對2002年6月24 - 25日發生在北京地區的強地形雨進行了分析，並討論陜南、北京地區兩地暴雨的異同點以及地形作用的共性和個性，為兩地暴雨預報提供有益的參考，得出了一些很有意義的結果： 1大尺度環流背景分析表明： （ 1 ） 「 02 . 6 」強降水與6月上旬越赤道氣流和季風爆發密切相關，攜帶大量水汽的偏南氣流與冷空氣於6月8日交匯在西北地區東部，導致了這次強降水的發生； （ 2 ） 200hpa的副熱帶西風急流、 500hpa副高以及850hpa的低空急流的配置非常有利於本文分析之陜西強降水的發展與維持。大尺度形勢分析表明，東高西低形勢場、低空急流的建立和高低空形勢的配置決定了這場降雨出現在西北地區東部。與暴雨區相聯系，存在一支橫越低空急流的經向垂直環流，暴雨區處于該垂直環流的上升支； （ 3 ）偏南和偏東氣流水汽通道在西北地區東部交匯，水汽的輻合積聚主要在對流層低層和行星邊界層內完成； （ 4 ）整層的視熱源< q _ 1 >高值區在暴雨區附近呈東北-西南向分佈，與切變線走向非常一致，降水產生的凝結潛熱釋放是強降水區大氣的主要熱源。
  7. The main work includes : based on biot ' s dynamic consolidation equations, by the method of integral transform and matrix transfer, two - dimensional consolidation of layered saturated soils is studied. then, the general integral solutions of stress ( including pore pressure ) and displacement ( including fluid flow ) of any point were obtained under harmonic vibration loads according to staunch boundary condition. second, a program to verify the correctness of this dissertation is developed

    主要工作有：本文根據biot平面動力固結方程，運用積分變換和矩陣傳遞的方法，研究了成層飽和地基的二維biot固結問題，根據下邊界為不透水基巖的邊界條件，獲得了地基表面作用簡諧振動荷載時，任意點應力（包括孔壓） 、位移（包括流體流量）的一般積分形式解。
  8. Based on the synchronic seqence stratigraphic framework, through comprehensive investigation of the evaluation of seqence, the type of sedimentary facies and sedimentary system with it ' s area distribution, the domination of paleogeographic structure to paleocurrent and sedimentary system, draw a conclusion : the boundaries of the thickness of sequence was bounded by the boundary faults. the irregularity of sedimentary facies was dominated by base level rise to fall and accommodation

    在建立等時層序地層格架的基礎上，分析了層序的充填演化規律、沉積相和沉積體系的類型及其平面分佈特徵、古構造對古水流和沉積體系分佈的影響，得出以下認識：層序發育的厚度受邊界斷層控制，層序內部沉積相的變化規律受基準面和可容納空間的控制。
  9. As the moving particle in the turbulence boundary layer, the resistance on microbubble from water may be fallen inside the scope of the stokes law

    作為湍流邊界層中運動的粒子，微氣泡受到水的阻力可能會在stokes阻力范圍內。
  10. Special analysis is made to see the impact of different boundary layer parameterization schemes on some factors which affect the heavy rainfall such as vertical velocity, divergence, vorticity, divergence of water vapor flux, se field and so on

    結果表明：復雜地形條件下，特別是降水有明顯日變化的地區，邊界層的作用是十分重要的，這在暴雨時的緯向垂直環流結構中表現地非常明顯。
  11. To solve this problem, the method of " sucking - spouting " water has been put forward by lin bingnan, based on the theory of boundary layer control, namely, sucking part of the discharge at the upstream - side of the convex barrier and spouting it at the downstream - side

    林秉南院士提出了兩種方案： 1 、吸、噴水方案，即在邊界（突出山體）的順水面將邊界層水流吸走，並在下游面噴水增加水流動量，以控制迴流尺度。
  12. The characteristics of flow field in boundary layer are different from that of laminar flow and turbulence. so, it was not ignored

    邊界層雖很薄，但由於其水流特性與一般的層流、紊流特性相差甚大，因而它對水流的影響是不可忽略的。
  13. Artificial periodic disturbances are introduced to the outer field of turbulent boundary layer in an closed - circuit open water channel. statistical method is employed for analyzing the velocity - fluctuation - time - series. the effect of the disturbance to turbulent structure in boundary layer is studied

    在開口式循環水槽底部湍流邊界層外區中引入周期性擾動，對湍流場的速度脈動時間序列信號進行了統計分析，研究了湍流邊界層中周期性人工擾動對湍流結構的影響，結果表明高頻擾動的湍流中she - leveque簡稱sl湍流層次相似律成立。
  14. The result shows that the heat transfer coefficient within the hollow fiber module with laminar flow can be calculated based on the correlation. by analyzing the equation, it was founded that the heat transfer coefficient under laminar flow is almost independent of the feed flow rate. numerical simulation of temperature distribution in hollow fiber membrane module with laminar flow was carried out

    首先採用純水為研究體系，研究分析了中空纖維管內的傳熱系數，研究表明，纖維管內的流動屬于層流狀態，其邊界層傳熱系數可用關聯式來計算，由此式看出，層流狀態下，流速對傳熱系數的影響很小。
  15. Horizontal circulation at the inlet of the upper approaching channel of three gorges project can affect the safety of navigation. boundary layers will separate along a curved dike causing horizontal circulation regions which affect the overall flow field and increase sedimentation

    類似的由於流動邊界出現凸出障礙物引起邊界層分離，導致迴流發展、流態惡化，造成泥沙淤積等一系列問題的情況，在水利、航道及電站等工程中普遍存在。
  16. An experimental investigation on the transition in the boundary layer of horizontal plane with and without single two - dimensional roughness elements has been carried out in the wind tunnel. the distribution in normal and stream - wise directions of intensity of t - s wave excited by vibrating beam was measured in every condition. neutral curves were obtained by measuring the growth of the t - s wave at the normal critical location along the stream - wise direction

    在風洞中對水平光滑平板以及加有粗糙元平板的邊界層轉捩進行了測量與研究，比較了不同情況下平板邊界層內由振動梁激勵生成的t - s波沿流向和法向強度的分佈規律，得到了相應的振型增長曲線以及中性曲線。
  17. Applying the energy equation and boundary layer theory, this article also analyzed the relationship of energy transformation of overflow, and obtained the experience index and formula of instability critical conditions

    並應用水流能量方程和邊界層理淪，研究了圍堰過水時的水流能量轉換關系，得到了穩臨界條件的指標和經驗判別式。
  18. Based on the previous research, the influences of boundary layer of guide blade were considered

    本文在前人研究的基礎上，主要考慮了導流條邊界層對水流的影響。
  19. As the strong normal share of the wind, turbulent fluctuation is strengthened and the sands are raised up from the surface ground the wind speed in the atmosphere of the low level has a horizontal share and this pushes the sands in the atmosphere aggregate, so the visibility descend

    近地面風速的垂直切變和地面熱通量的加大，都可使使邊界層湍流加強揚起地面沙塵。地面鋒區附近風場的強水平切變，鋒面垂直環流及鋒后斜壓轉換的作用，將地面捲起的沙塵帶到高空，爆發強沙塵暴。
  20. In this paper, firstly large - scale air circulation and weather system evolution are analyzed, and get the scale feature and spread process of the meso - scale convective system by analyzing time - space layout of precipitation and satellite cloud maps. the lower resolution of t213 model and less time - space resolution of data were responsible for the above mentioned misforecast. in this study, the event is simulated by mm5v3. 6 with two - way - interaction and triple nested grid

    分析並指出了此次過程中對流降水的演變規律：對流活動引起的高層重力波和邊界層冷涌是對流傳播和觸發大暴雨中心對流活動的主要機制，地面冷空氣的侵入，引起邊界層暖濕空氣的交匯和強烈輻合是對流活動顯著加強的原因。
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