非均勻網格 的英文怎麼說

中文拼音 [fēijūnyúnwǎnggé]
非均勻網格 英文
non-uniform grid
  • 非 : Ⅰ名詞1 （錯誤） mistake; wrong; errors 2 （指非洲） short for africa 3 （姓氏） a surname Ⅱ動詞1 ...
  • 均 : Ⅰ形容詞（均勻） equal; even Ⅱ副詞（都; 全） without exception; all
  • 勻 : Ⅰ形容詞（均勻） even Ⅱ動詞1. （使均勻） even up; divide evenly 2. （分出一部分） spare
  • 網 : Ⅰ名詞1 （捕魚捉鳥的器具） net 2 （像網的東西） thing which looks like a net 3 （像網一樣的組織或...
  • 格 : 格象聲詞rattle; gurgle
  • 網格 : cancellus
  1. Regard - ing the surface runoff mechanism, liang and xie 1, 2 presented a new surface runoff parameterization which dynamically represents both the horton and dunne runoff generation mechanisms within within a model grid cell together with a consideration of the subgrid - scale het - erogeneity, which can be applied to not only humid regions but also droughty regions as well 3, 4. regard - ing the soil water movement, xie et al. 5 developed an unsaturated flow numerical model based on the finite element method, and xie et al. 6 presented another numerical model to compute soil moisture and water flow flux together by means of a mixed finite element method

    在地表徑流方面，文獻1 3發展了一種同時考慮蓄滿超滲產流機制及次網格非均勻性的新的徑流機制模型，並用其改進了陸面模式vic variable infiltration capacity中的徑流計算，該模型既適用於濕潤地區也適用於乾旱地區4 .在土壤水模型方面，文獻5採用有限元質量集中法發展了非飽和土壤水流的數值模型，文獻6則採用混合有限元法建立了非飽和土壤水分含量和通量計算的數值模型
  2. In recent years, plentiful and substantial fruits achieved by the lb method in simulations of hydraulics, multiphase flows, flows in porous media and heat transfer as well as magnetohydrodynamics, have revealed a broad perspective of application of this method, it will become a powerful competitor to the conventional approaches. in order to absorb the recent achievement in theory and application of the lb method, explore new ways in hydraulic computation to promote the development of practice, some work is car ried out in this thesis, as following : advances in the theory research and application, deductive process of the d2q9 model and some other commonly used models of the lb method are summarized. based on the hydrodynamic and general boundary conditions, a new joint boundary condition is presented, it integrates advantage of the two conditions above and obtains very good results in dealing with all kinds of boundaries of flow fields

    為了消化和吸收近年來lb方法在理論和應用方面的新成果，探索在水力計算方面的新途徑以促進lb方法實用化的發展，本文進行了下列研究工作：綜述了lb方法在理論研究和實際應用方面的新進展，以及d2q9模型的推導過程和其他一些常用的模型；在水動力邊界條件和通用邊界條件的基礎上提出了一種新的聯合邊界條件方法，它綜合了上述兩種邊界條件的優點，在流場的各種邊界處理中取得了非常好的效果，經過模塊化的處理以後這種邊界條件具有更好的實用性；針對均勻網格的lb方法計算效率較低的不足，提出了雙重網格的latticeboltzmann方法，通過二維poiseulle流動、后臺階流動和渠道方槽流動三個算例的模擬，證明這種方法能夠明顯地提高流場模擬的計算效率；此外，根據復雜區域流場的特徵提出了latticeboltzmann方法的分塊-耦合演算法，利用lb方法的計算特性實現塊與塊之間的數據交換，充分利用計算資源提高計算效率，通過對「 t 」型、 「十」型和「 x 」型分岔管道流場的模擬，展示了這種演算法的特徵和優點，以及它所具有的應用前景。
  3. This thesis gives a brief account of the basic theories of software engineering and computer graphics, of the data structure of individual component modeling, of the design of the software structure and of the method of realizing software. meanwhile, this thesis put more emphasis on the exploration of the arithmetic of the delaunay triangle network, nurbs curve integration, the filling - in arithmetic of triple - tree, and the arithmetic based on the scan - line arithmetic and the filling - in of complex section

    文章介紹了關于軟體工程學與計算機圖形學的基本理論及其各組件模型的數據結構、軟體結構設計與軟體實現的技術方法，並重點討論了基於約束條件的delaunay三角網格化演算法、 nurbs （非均勻有理b樣條）曲面擬合、三叉樹等值線填充演算法和基於掃描線的復雜剖面填充演算法。
  4. Its accomplishment is simple and intuitional. the main innovation of this method is that we only need construct a symmetric zonal mesh for each interpolated curve respectively and write appropriate knot spacings for mesh edges. then applying nurcc rules to the initial control polygonal mesh consisting of those symmetric zonal meshes can generate a surface that satisfies interpolation constrains

    該方法的主要創新思想是在被插值曲線的控制多邊形兩側構造具有簡單對稱性質的四邊形網格，稱為對稱網格帶，但關鍵還在於對網格邊賦予適當的節點距，並對由這些對稱網格帶組成的初始控制網格應用非均勻有理catmull一clark細分規則，來生成滿足插值要求的曲面
  5. Three finite - difference methods, i. e., stagger grid, implicit and explicit algorithms, are analyzed in detail. multi - grid algorithm is firstly introduced in elastic wave simulation, to solve for the stability problem inherent in stagger grid and implicit algorithm, also for the efficiency problem inherent in explicit algorithm, and the precision, stability and efficiency for simulation of elastic wave arc increased by multi - grid method. phase - delay method is provided to effectively absorb boundary reflection and increase efficiency for wave motion simulation, based on phase delay and amplitude decaying features along wave propagation

    在水平分層介質接收函數的波形反演研究的基礎上，本文系統闡述了非均勻介質中彈性波傳播數值模擬常用的三種有限差分方法：顯式差分、隱式差分和交錯網格法，首次將多重網格演算法應用於彈性波方程的數值模擬問題，克服了交錯網格法和顯式差分法穩定性差，以及隱式差分法計算效率低的缺點，大大提高了彈性波數值模擬的精度、穩定性和計算效率。
  6. To demonstrate the heterogeneity of hydrological flux and the significant influence on regional evaporation, firstly, it is proved theoretically that because of soil water content ' s horizontal spatial variability ( heterogeneous distribution ) an additional heterogeneous disturbance which is equivalent to mesoscale flux is induced

    首先從理論上推證出：由於土壤水分所存在的水平空間變率（非均勻分佈，對網格區平均通量而言，可引發附加的量級與中尺度通量相當的非均勻擾動項。
  7. The additional sub - scale flux is mainly determined by the average grid value, coefficient of variation and correlations among the meteorology parameters. ( 2 ) the additional sub - scale turbulence flux is composed by two parts, one part is induced by the correlations among the transfer coefficient, surface temperature and soil humidity, another is caused by non - line relationship between the transfer coefficient and roughness, stability

    （ 2 ）非均勻分佈引起的附加次網格地表湍流通量主要由兩部分組成：一是地表次網格上輸送系數和地表溫度、濕度的相關項，另一是由於模式中計算整體輸送系數時，整體輸送系數是地表粗糙度和穩定度的非線性函數所造成擾動項。
  8. In this paper, starting with the physical mechanics of land surface hydrologic process and the introduction of the theory in probability statistic distribution, an analytical expression of heterogeneous evapotranspiration efficiency is given which takes heterogeneous soil water content ' s subgrid scale spatial variability into account, through which the parameterization scheme of subgrid scale soil surface ' s evapotranspiration efficiency ( which is generally called mosaic method ) is modified to a statistic - dynamic scheme in which a whole heterogeneity of the grid region is considered

    本文從陸面水文過程的物理機制出發，引進概率統計分佈理論，推導出一種由非均勻土壤含水量次網格尺度空間變率所形成的非均勻蒸發散率解析表達式，從而將通常的次網格尺度地表蒸散率的參數化方案（ mosaic方法） ，改進為考慮網格區整體非均勻性的統計-動力參數化方案。
  9. Meanwhile, owing to the fact that there is huge hardness in accurate extracting of attenuation constant, one of the most new modified compact fdtd methods is applied to analyzing lossy multiple conductors to give accurate results. it is combined with the nonuniform mesh partitioning technique to reduce the computing time

    針對有耗導體衰減常數難以精確提取的問題，將一種最新改進降維方法應用到有耗多導體系統分析中，並結合非均勻網格劃分技術，在得到準確衰減常數的同時有效地減少計算時間。
  10. The region of computation is made up of 9 sub - regions. in this study a semi - staggered grid arrangements was adopted. non - uniform grid distributions which are more dense in all the near wall regions were used

    文中將整個計算域分為9個子域，採用半交錯式網格布置，非均勻的網格分佈使得在所有近壁區的網格都更為細密。
  11. An effective discritized scheme based on staggered grids is provided by deeply studying the construction and implementation of difference scheme on non - uniform and staggered grids. coupling of velocity and pressure is solved by simple method ; the boundary conditions and relations of velocity and pressure are analyzed in details

    深入研究交錯非均勻網格的差分方案的構造與實施，基於交錯網格提出了有效離散格式；採用simple演算法對速度壓力關系解耦，列舉幾種代數方程的求解辦法，分析並闡述了逐線鬆弛技術。
  12. Thereby the complicated evaporation process of heterogeneous soil surface is simplified into a flux integral expression which contains two - pail contributions from soil water relatively saturated region and unsaturated region, and it is proved that the calculation of mean evapotranspiration efficiency in grid region can be simplified into weighted average of heterogeneous regions

    從而將非均勻地表區域的蒸發過程的復雜機制分解為地表層土壤水分飽和區與非飽和區影響下的通量貢獻積分式，從理論上證明，網格區平均蒸散率的計算可簡化為不同性質的區域加權平均。
  13. Nonuniform mesh grid algorithm for lattice boltzmann method based on interpolation

    方法非均勻網格演算法
  14. Uniform second - order pointwise convergence of a hybrid difference approximation for a singularly perturbed robin problem

    基於非均勻網格求解非線性對流擴散問題的一種高精度差分格式
  15. The essentially non - oscillatory characteristic difference method for convection - diffusion equation

    構造對流擴散方程高精度非均勻網格格式的指數變換方法
  16. A second - order non - uniform grid essentially non - oscillatory difference scheme

    一個基於非均勻網格上的二階基本無振蕩差分格式
  17. This preprocessing software can realize mesh automatic generation of rule hexahedral, can generate well - proportioned and non - well - proportioned grids. this soft can also realize the function of grid local refining

    此前處理軟體能夠實現對規則六面體的網格自動剖分，可以生成均勻與非均勻網格，具有網格局部加密的功能。
  18. An nonuniform mesh partitioning technique is developed by modification. it solves the difficulty of grid producing by an easy and flexible way

    在分析中，通過改進，提出並實現了一種非均勻網格的自動劃分技術，以簡便靈活的方式解決了非均勻網格產生的困難。
  19. This paper consists of two parts : on the one hand, the numeric method - nfdtd used to analysis this new kind of antenna is introduced. and its numeric error is analyzed. on the other hand, this new kind of antenna is studied and analyzed by nfdtd

    論文的主要內容可分為兩個方面:一方面介紹了分析研究這種天線的數值方法? ?非均勻網格時域有限差分法，並對非均勻網格時域有限差分法的計算誤差進行了研究。
  20. This dissertation is mainly devoted to find a shortest path between two distinguished points among rectilinear obstacles under bbl mode, for both asymmetric grid graph and grid - off model. we have proposed two kinds of graphic model which allow us to reduce the spatial - temporal complexity of problem significantly

    本文我們首先就物理設計中bbl模式下典型的兩端繞障礙布線問題，提出了解決不同條件下實際問題的兩種模型，即非均勻網格和無網格的兩種模型，使問題的復雜度大大下降。
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