邊界層分離 的英文怎麼說

中文拼音 [biānjiècéngfēnlí]
邊界層分離 英文
boundary layer separation
  • 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...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 邊界 : boundary; frontier; border; borderline; edge range line; periphery
  1. 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。
  2. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  3. The experiment shows that by changing the velocity coefficient, the separation of boundary layer on pump vane can be controlled, and the performance of pump is improved and its hydraulic efficiency

    實驗證明通過改變葉片型線參數方程中的速度系數的取值，可以控制邊界層的分離，進而改善泵的性能，提高其水力效率。
  4. 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。
  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. Soil springs are used around the pipe including vertical, lateral and axial soil springs to consider the interaction between the pipeline and the surrounding soil. the pipe segment near fault that usually suffers large deformation is modeled with a plastic shell element in order to consider the effect of local buckling and section deformation. to reduce the calculating time of the whole model, an equivalent spring proposed by the author is applied at two ends of the shell model

    為了解決現有的殼單元方法需要大量計算機時的缺點，本論文首次從理論上把離斷層較遠管土之間相對變形較小的管子直線段部分的變形等效為一個非線性彈簧，將此等效邊界引入到有限元模型中，使得模型中的殼單元部分主要用來分析我們所感興趣的在斷層附近發生大變形的管段，從而達到節約計算時間的目的。
  7. Perturbation analysis of boundary layer on liquid phase fluid centrifugal pump

    液相流離心泵邊界層的攝動分析
  8. A separation in the boundary layer of fluid about a moving streamlined body, such as the wing of an airplane, causing a breakdown in the smooth flow of fluid and resulting in turbulence

    氣流分離移動的流線型的軀體上流體邊界層上的分隔物，如飛機的機翼，在平滑的流體流動中會引起故障和湍流
  9. In this study, the transonic shock - wave / boundary - layer interaction and viscous shear stress for the turbine and compressor stator were simulated used the implicit two - factor flux - splitting schemes for solving the thin - layer compressible flow

    除驗證各式正確性外並模擬葉片外形對氣流分離、震波/邊界層相互干擾及壓縮比等關系，以及流體黏滯性等影響下，引擎能量損失與效益分析。
  10. According to the comparison between simulation results and laboratory measurements, this paper reaches the conclusion that the negative pressure region in convex boundary ( including broken line gradient ) not only caused by boundary layer separation, but also especially caused by centrifugal force which is the result of convex boundary

    根據數值計算與模型試驗結果的比較，得出具有凸形曲面邊界（包括折面底坡）負壓區的存在不僅是邊界層分離所致，邊壁彎曲使過流產生的離心力也是產生負壓的重要原因的結論。
  11. 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。
  12. Solving the elliptic grid generation together with an algebraic method marching along the normal - to - wall direction, viscous grids around complex geometries are generated. the inner - layer grids with the algebraic method is othogonality and easy to control the distance to the wall. according to the hilgenstock, the source items are calculated to control the othogonality and spacing of grid lines on boundaries

    法向外推方法生成的內層代數網格具有很好的正交性，可隨意控制網格至物面距離，確保邊界層內有足夠多且密的網格；外層網格採用hilgenstock方法，根據網格線角度和距離與期望值之間的誤差不斷進行源項修正，實現網格對邊界正交性和距離的雙重控制，保證了網格的合理分佈並具有較高的質量。
  13. The effects of the two methods of " sucking - spouting " water and flow - deflection on the horizontal circulation were tested experimentally in a 50cm - width flume with a spur dike placed as a barrier

    可以把主流的一部分能量傳給邊界層內靠近壁面的流體質點，使之加速，從而達到防止邊界層分離的目的。
  14. Firstly, based on n - s equation, the momentum differential equation （ contained centrifugal force ） is derived by simplification in boundary layer and then integrates the differential equation over the thickness of the boundary layer, the momentum integral equation is deduced. the dimensionless centrifugal factor is introduced, then the solution of the momentum integral equation is obtained. the dimensionless group is introduced to determined separation of boundary layer

    本文首先根據粘性流體力學的一般方程，通過在邊界層內進行量級比較，在所限定的范圍內得到了含有離心力的邊界層動量微分方程並給出其滿足的邊界條件，然後對該微分方程在邊界層內積分得到離心泵葉輪邊界層動量積分方程，在求解過程中引入了無量綱離心因子，並作了相應合理的假設，得出積分方程解的一般表達式，並引入以邊界層動量損失厚度為主要特徵量的無量綱參數對邊界層分離進行評價。
  15. The micro shear stress sensor which based on the smart skin for boundary - layer separation point detection of delta wing has been explored in this paper

    本文就以用於實現三角翼邊界層分離點檢測的面向靈巧蒙皮的微型剪應力傳感器為對象展開研究。
  16. According to the theory of boundary layer and the important of boundary - layer separation point detection of delta wing, the measuring principle and structure scheme of various system alternatives based on mems technology have been discussed, selecting the prototype of better workability. base on the master piece model of micro shear stress sensor

    首先，結合空氣動力學的邊界層原理，針對三角翼邊界層分離點檢測在實現主動氣動控制方面的重要性，討論了光學式、電容式和熱敏式微型剪應力傳感器的測量原理和結構方案，選取適合加工條件的微型剪應力傳感器樣件。
  17. Abstract : a numerical investigation of three - dimensional separated flows about a hemisphere - cylinder is presented. the analysis has been restricted to transonic and laminar flows. results are given for the complex flow field structures including shock, boundary layer, separated flow, vertical flow and their mutual effects. the topological structures of the separated flow is shown

    文摘:本文數值模擬了半球柱在跨音速、中等攻角時的粘性層流繞流，研究了流場中的復雜三維分離形態結構，其中包含流向與橫向的主分離、二次分離、以及激波邊界層的相互干擾，解釋了在球柱接合部精確捕獲的壓力波動與流動主分離、二次分離的影響關系，這個現象是前人的計算5 ， 6未捕捉到的。
  18. Results from this investigation show that the loss generation within the coolant holes is substantial and that ejection into regions of low static pressure increases the loss per unit coolant mass flow. the results also reveal strong interactions between endwall coolant ejection and secondary flow in the blade passage. the secondary flow has a strong influence on coolant trajectories and coolant ejection delays the three - dimensional separation of the inlet boundary layer on the endwall, chang the secondary flow and reduces its associated losses

    本文的研究成果顯示，冷卻孔內產生的損失是主要的，並且低靜壓區域的冷空氣噴射會增加單位冷空氣質量流的消耗；噴射的冷空氣與葉柵端壁流場之間有強烈的相互作用；二次流對冷卻空氣的流動軌跡有較強的影響；冷空氣噴射能延緩端壁入口邊界層的三維分離、改變二次流從而減少其相關損耗。
  19. Based on the theory of boundary layer and analysis of the velocity field of main flow, the thesis also derives the vane shape equation. in the equation, （ angle of pump vane ） is variable parameter, （ velocity coefficient ） is introduced as medium factor, which connects the theory of boundary layer with the eular theory. it provides a valuable reference for the designation of vane of pump

    基於離心泵葉片邊界層理論和對主流區速度場的分析，給出了離心泵葉片型線參數方程，它以葉片角為變參數，引入速度系數作為中間因子，將邊界層理論和歐拉理論聯系起來，並在離心泵葉輪的設計過程中統一起來，能夠在設計中就根據實際的需要防止或控制過流表面的邊界層的分離。
  20. Dr. zhu yucai first presented the theory of boundary layer of centrifugal pump and derived the vane shape equation. based on the theory and analysis of references abroad and home on centrifugal pump, the thesis creates a mathematic model of turbulent boundary layer of centrifugal pump

    朱玉才博士首次提出了離心泵邊界層理論並給出了葉片型線方程，本文就是基於朱玉才博士研究工作的基礎上，通過大量分析國內外有關文獻，建立離心泵葉輪湍流邊界層的數學模型。
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