邊界層方程 的英文怎麼說

中文拼音 [biānjiècéngfāngchéng]
邊界層方程 英文
boundary layer equation
  • 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...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 邊界 : boundary; frontier; border; borderline; edge range line; periphery
  1. Based on this milti - hierarchical model, application method for information organization of part is presented. chapter 3 proposes a new rule of arbitrary maximum angles of chord for triangulation and locale optimum, which avoides calculating angles of conventional methods in mesh simplification. moreover, with the introduction of arithmetical average windage concept, optimum method for the boundary mesh retriangulations is presented

    第三章針對曲面網格簡化操作過程中出現的空洞剖分問題，討論層次模型的網格優化方法，提出了基於弦內角最大準則的局部網格簡化方法；針對網格曲面上存在的曲折邊界缺陷，提出以邊界輪廓算術平均偏差作為邊界曲折程度評定參數的邊界平滑優化剖分方法。
  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. 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. On the basis of prantel boundary layer idea, wind sand fluid of irreducible rare phase as research object, by the foundation of general equation of wind sand fluid, in the condition of basic hypothesis, the boundary layer equation of car roof surface is set up and the boundary condition the fluid slippage character in solid wall surface is given

    摘要基於普朗特的邊界層思想，以不可簡化成稀相的風沙流體為研究對象，以風沙流的一般方程為基礎，在基本假設的條件下，建立了高速轎車車身頂部過流表面的邊界層微分方程並給出沙流在近壁表面以滑移為特徵的邊界條件。
  5. Due to its complexity of the problem, the theories and experiment results obtained are discrepant, and some of them are even contrary one another. started from the influence by movement rules of small cavities and solid particles, the mechanisms of combined effect of cavitation and sand abrasion are study in this thesis from the aspect of the turbulent coherent structure near the wall. first, a dynamic equation is established for a single spherical bubble and single spherical sand under the non - turbulent coherent structure near the wall, and then a dynamic equation established under the turbulent coherent structure near the wall

    首先從理論上推導出在典型湍流邊界層模式的非擬序結構下空泡與固體顆粒的近壁區運動方程，然後推導出湍流近壁擬序結構作用下的空泡與固體顆粒的近壁區運動方程，再將兩種不同條件下的的運動方程進行比較，指出湍流近壁區的擬序結構對空蝕與磨損的發生具有決定性的意義，即正是由於擬序猝發作用的存在，才使得空泡、沙粒對壁面的空蝕與磨損作用得以發生。
  6. According to the feature of oils, the evaporation of crude oils is not controlled by the boundary layer and the prediction equation based on the water evaporation equation is not correct theoretically

    結合原油組分特點，認為過去將原油蒸發當邊界層控制來處理，以及以純水蒸發速率方程為基礎通過修正而建立起的原油蒸發速率方程是缺乏理論根據的。
  7. We study the singular perturbation of boundary value problem for a class of higher order ordinary differential equation, the solution is shown to exhibit double layer behavior

    摘要研究一類高階微分方程兩點邊值問題的奇攝動，揭示了其解分別在兩端點呈現雙重邊界層的性質。
  8. In chapter two, according to n - s equation, considering the couple between liquid and solid, the double - fluid model is used to respectively set up momentum equations of two - phase fluids in condition of basic hypothesis, which are general equations of two - phase fluids. simplifying the equations in boundary layer, the momentum differential equations are required and the boundary conditions are given. in the same time, the simplifying equations and their solutions, in which solid grain satisfies in boundary layer

    第二章依據n - s方程，考慮到液、固之間的相間耦合，在基本假設條件下，採用雙流體模型，分別建立液、固兩相的動量方程，它是固液兩相流體的一般方程式；對其在邊界層流區內進行量級比較，得到邊界層動量微分方程並給出其邊界條件，同時也得到固體顆粒在邊界層內所滿足的簡化方程及其解的表達式。
  9. 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
  10. The creative points of the thesis are as follows : （ 1 ） the thesis establishes turbulence boundary layer equation that contains centrifugal force in flow field of two - dimension boundary layer of centrifugal pump and gives its solution

    本文創新之處是： （ 1 ）在離心泵葉輪二維邊界層流場內，建立了包含離心力的湍流邊界層方程並給出了近似解。
  11. In order to predict hydrodynamic characteristics a computational system is developed including determination of the pressure distribution on a wing section by use of the conformal mapping method and panel method respectively and of the flow in boundary layer according to the thin shear layer approximation ( tsl ) for navier - stokes equation approach. the wing sections of naca4412 and naca0012 are applied to test the computational system. the numerical inspection shows that the panel method with better precision and the momentum and the displacement thickness of boundary layer can be used to complete this calculation

    本文分別用守屋的保角變換法和基於源匯渦分佈的面元法，建立了計算槳葉表面壓力分佈的數學模型；應用納維-斯托克方程的薄層近似理論模式和有限差分數值方法，建立了計算機翼表面邊界層內部流動的數學模型；應用槳葉表面邊界層內部粘性流動和外部勢流流動在邊界上的匹配演算法，建立了槳葉表面二相流流動的計算方法和相應的計算機程序。
  12. Sensitive experiments on the boundary layer schemes during the strengthening process of typhoon khanun

    加強過程對邊界層參數化方案的敏感性試驗
  13. The compound matrix method is used to obtain the eigenfunctions of stiff six - dimensional differential equations subject to an equal number of separated boundary conditions at end points

    摘要對于有邊界條件的且有邊界層的微分方程組，常常使用復合矩陣法獲得特徵函數。
  14. By the integral to boundary layer thickness and relative conditions, the momentum integral equation of boundary layer is obtained

    通過對邊界層厚度的積分並利用相關條件，得到了邊界層動量積分方程。
  15. In chapter three, the momentum integral equations and their solutions of two - phase fluids in boundary layer are given and the no - disturbance solutions on the surface of vane are required. leading into the disturbance factor of no - dimension and thickness coefficient ks in boundary layer, the numerical method of finite approximation is used to calculate the boundary layer

    第三章給出了固液兩相流泵的邊界層動量積分方程及其解的一般表達式，並得到葉片表面的無擾動解；引入了無量綱擾動因子及邊界層厚度系數k _ ，給出了用於邊界層計算的有限次逼近的計算方法。
  16. 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。
  17. Similarity solutions of boundary layer eqnations for a special non - newtonian fluid in a special coordinate system

    特殊坐標系中特殊非牛頓流邊界層方程的相似解
  18. This paper has established a class of mathematics model about prandtl boundary layer problem. compare to navier - stokes equation, prandtl boundary layer equation has important simplicity and easier

    普朗特邊界層方程和納維? ?斯托克斯方程相比，有了重大的簡化。
  19. In this paper i has applied inverse operator method to the solution of the nonlinear boundary layer equation on base of the former knowledge, and have gotten the approximate analytic solution

    本文把逆算符方法應用到了普朗特邊界層方程上來，並且求出了逼近解析解。
  20. But on the other hand, should also see, boundary layer equation as before is a nonlinear differential equation set of two steps, the nonlinear nature of equation is still retained, so solving this system of equations on mathematics untie is fairly difficult

    但另一方面也應看到，邊界層方程依舊是一個二階的非線性偏微分方程組，方程的非線性的性質仍然保留，這使得在數學上求它的解還是相當困難的。
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