格網坐標系 的英文怎麼說

中文拼音 [géwǎngzuòbiāoxì]
格網坐標系 英文
grid coordinate system
  • 格 : 格象聲詞rattle; gurgle
  • 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...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  1. 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。
  2. Based on the previous work, the equations of motion and elastodynamics are changed. a high - order staggered velocity - stress finite - difference formula of the acoustic field in borehole are set up in cylindrical coordinate, and the corresponding code is accomplished

    本文在彈性波動力學的基礎上，將運動方程和本構方程作適當變形，採用交錯網格技術建立了井孔波動方程在柱坐標系下的速度?應力高階有限籌分公式，並編制了相關計算程序。
  3. In this paper, by use of the idea of constructing of high accurate eno ( essentially non - oscillatory ) schemes applied successfully in the simulation of euler equations, a new kind of high accurate finite volume schemes have been constructed in lagrangian coordination. combining with the eno interpolation, two kinds of conservative remapping algorithms have been developed for arbitrary mesh systems

    本文採用已經在euler方程求解中得到成功運用的高精度eno （ essentiallynon - oscillatory ）有限體積格式的構造思想，構造了lagrange坐標系下高精度有限體積格式，結合eno插值自適應選取插值點的特性，提出了兩類適用於任意網格的守恆重映方法。
  4. In this article, we use idea of turning dispersion into convergence and put all the well ' s points into the same unit net to think about it. and answer three questions of the distribution of well drilling by the way of searching for groups of points. fincite - step - searching underthe condition of translationg fcoordinate system or revolving coordinate system. to first question. we find two algo - rithms and make use of data that is given to find the solution. we seek coorlinate of net point is co. 361, 0. 461 ) and mostly four old well ' s points are utilized at the same time by first algorithim, which are no. 2, no, 4, no. 5, no. 10. by second algorithm, we rechon the coordinate of net point is co. 390, 0. 505 ). and that mostly four old well ' s points are utilizld which are no. 2, no. 4, no. 10. to second question, we turn it into the first question by angling awt the center of net point. we seek that mostly six old well ' s points are utilized at the same time, which are no. 1, no. 6, no. 7, no. 8, no. 9, no. 11, when net is angled 0. 78 radian. and net point is translated to ( 0. 75, 0. 076 ) ( at nwe coordinate system ). to third question, wefind a necessary and sufficient condition and affer algorithms, at last, we analyse algorithms

    運用化分散為集中的思想，把所有的井點都放在同一個單位網格內考慮.在坐標可平移、旋轉的條件下，利用尋找點群、有限步驟搜索法，對鉆井布局的三個問題進行了解答.對問題一，給出了兩個不同演算法.並對題目提供的數據進行了求解，演算法1得到的結點為（ 0 . 361 ， 0 . 461 ） ，最多有4個舊井點被同時利用，它們是第2 、 4 、 5 、 10個井點;演算法2得到的結點為（ 0 . 390 ， 0 . 505 ） ，最多有4個井點被利用，它們是第2 、 4 、 5 、 10個井點.對問題二，以結點為中心旋轉一定的角度后，歸結為問題一進行求解，求解結果為當網格傾斜角為0 . 78弧度（相對原坐標系） ，結點平移到（ 0 . 75 ， 0 . 076 ）點（在新坐標系下） ，可被同時利用的最多舊井點為6個，它們是第1 、 6 、 7 、 8 、 9 、 11個井點，對問題三，我們給出了充要條件，並給出了演算法.最後還分析了演算法的優劣性
  5. First, the fundamental theory of the basic fdtd method and its application in the analysis of the electromagnetic properties of infinite planar periodic structures is summarized. the basic ideas of the auxiliary fields fdtd method is expressed and generalized to the situations of the 2 - d periodic structures, to lossy media, and to the curvilinear coordinate. the shortcoming of this method in the management of conformal grids is pointed out

    首先總結了fdtd方法的基本理論及其在周期性結構電磁特性分析中的應用，闡述了輔助場fdtd方法的基本思想，把它推廣到二維周期性的情況和計算區域為有耗媒質的情況，再進一步推廣到曲線坐標系中，並指出了該方法在網格共形處理中的不利之處。
  6. This dissertation is mainly about the transit radiation of the electron beam passing through the gap with the random standing wave electric field. in order to satisfy the requirement of the task, the feasibility of generation of more than 1 gw high power microwave in x - band using the transit radiation oscillator based on the transit effect is studied

    研究了二維柱坐標系網格劃分演算法，並用此演算法對五腔開放腔進行網格劃分，採用時域有限差分與快速傅里葉變換相結合的方法計算了五腔開放腔/ 6 、 2 / 6 、 3 / 6 、 4 / 6 、 5 / 6模這五個模式的頻率和場分佈。
  7. It realized the spatial interpolation software grounded on geostatistics seamlesslly integrated with the system using the way of oop and the technology of ole / activex based on com. using vector - grid spatial - overlap analysis to solve the limitation of the grid and general vector data structure in the course of creating prescription, it made fertilizer prescription founded on the main factor of soil nutrient and yield - target. also it effectively integrated comgis with exper t system using the technique of loose coupling

    以面向對象的設計方法為基礎，利用「組件對象模型」基礎上ole / activex技術實現基於地統計學的空間插值軟體實現及與施肥處方系統的無縫集成；應用基於矢量網格的空間疊加分析方法解決柵格和常規矢量數據結構在處方生成中的局限，生成了基於土壤養分和目標產量為主要因素的施肥處方；利用鬆散耦合技術將comgis與施肥專家系統進行有效集成；充分考慮施肥機對施肥處方數據結構要求，在wgs - 84坐標系下採用具有柵格單元的矢量施肥處方。
  8. Uses a left - handed coordinate system to create a mesh that contains an n - sided polygon

    使用左手坐標系創建包含n邊形的網格。
  9. For the reason of concerning with large mesh distortion, the research of this kind of methods mainly focuses on constructing of finite volume schemes in lagrangian coordination and remapping of physical quantities between mesh systems

    這類方法由於涉及到lagrange坐標系下計算網格的變形問題，目前的研究工作主要包括lagrange坐標系下有限體積格式的構造和針對計算網格變形的守恆重映問題。
  10. By use of eno interpolating polynomials on unstructured grids, a high accurate finite volume scheme has been constructed through combining the idea of constructing of high order accurate finite volume schemes on structured grids. iii ) constructing of a new kind of high order accurate conservative remapping algorithm. it is based on the technique transferring physical quantities between the two computational meshes, known as remapping

    （ 2 ）基於非結構網格的lagrange坐標系下的有限體積格式構造：使用非結構網格下的eno插值多項式，結合結構網格高精度格式構造的思想，構造得到了非結構網格下的高精度有限體積格式。
  11. Uses a left - handed coordinate system to create a mesh that contains a sphere

    使用左手坐標系創建包含球體的網格。
  12. Based on poission equation conversion, generated methods of curvilinear grids are presented. 4. 2 - d flow and sediment transport model with non - staggered curvilinear grids is presented

    （ 3 ）以poission方程變換為基礎，建立擬合曲線坐標系下非正交和正交曲線網格生成方法。
  13. Finally, in orthogonal curvilinear coordinate systems numerical model is established and applied in the yangtze river estuary in which some regulation plans are taken include submerged jets and groins. verifications are also done to verify water level and velocity. flow fields are computed for the analysis of effect of regulation engineering on the whole water area

    最後，應用正交曲線網格技術，建立了正交曲線坐標系下廣義淺水方程的計算模式，將之應用於長江口深水航道整治工程的流場計算，進行實測水位、流速驗證和流場模擬。
  14. The expression of the improved boussinesq equations in curvilinear orthogonal coordinate system is derived. on the basis of poission equation conversion, the methods to generate curvilinear orthogonal grids are introduced, and then the two - dimensional numerical wave model under curvilinear orthogonal coordinate system is established

    推導了正交曲線坐標系下的改進型boussinesq方程，以poission方程變換為基礎，建立擬合正交曲線坐標系下正交曲線網格的生成方法，進而建立正交曲線坐標系下的二維波浪模型，提高了模型對復雜地形的適用性。
  15. This thesis presents the high resolution numerical simulation methods for multi - fluid dynamics. the main contents include three parts : the first is a set of interface capturing equations deduced to describe the interface evolution, which is suitable for constructing two - order enhanced un - split finite volume scheme and three - order parabolic - piecewise - method ( ppm ) scheme in euler coordinate ; the second is the capabilities of level - set method for tracking multi - fluid interfaces are unproved ; the third is that the computational resolutions are much more advanced by improving adaptive mesh refinement ( amr ) technique

    主要研究目的是獲得多介質流體流動的高精度數值模擬方法，主要內容包括界面捕捉方程的推導，適用於euler坐標系的增強型二階精度非維數分裂有限體積計算格式和三階精度ppm格式構造，以及發展改進levelset方法提高捕捉流體界面的能力，發展改進網格自適應技術提高各類方程解的計算精度。
  16. Different from realms, dual grid adopts finite precision rational coordinate system, which can express intersection points exactly. therefore, the complexity of spatial redrawing can be avoided, and spatial management subsystem can be implemented easily

    與realms不同，雙網格使用了有限精度的有理數坐標系統，能夠準確表示線段的交點，從而避免了復雜的空間調整，使空間管理子系統易於實現。
  17. Pentagonal conformal grids modeling in the two - dimensional cylindrical coordinate

    二維圓柱坐標系中五角形共形網格演算法
  18. Numerical results are consistent with that of sandia laboratory experiment and agree with that of cth code too. an adaptive mesh refinement under 2d euler structure grid for multi - fluid flow is developed for resolving richtmyer - meshkov, rayleigh - taylor and helmholtz multi - fluid instabilities, and the high resolution interface properties can be obtained

    數值模擬多介質流體richtmyer - meshkov ， rayleigh - taylor ， helmholtz界面不穩定性，用levelset函數定義euler坐標系中界面附近網格自適應判據，使得網格剖分更加合理，既能提高計算精度又能節省計算時間。
  19. After the coordinate transformation, the discrete velocity boltzmann equation is solved directly in computational domain to preserve the geometry of body. the results comparison of cylindrical couette flow at different size meshes, different lattice bgk models and different algorithms shows that, not only the precision of the incompressible lattice bgk model is satisfactory, but also the curvilinear coordinate algorithm is efficient

    首先計算了存在理論解的圓柱couette流動，並針對不同數目的離散網格、不同格子模型以及不同坐標系演算法，對結果進行了比較，不僅再次印證了本文第四章給出的不可壓格子模型具有滿意的計算精度，而且表明本章的貼體坐標演算法是行之有效的。
  20. The model system is in the generalized curvilinear coordinates, using high precision self - adaptive grids to fit the complicated topographies and coastal shapes

    模型系統採用廣義曲線坐標系下的形式，使用高精度的自適應網格擬合復雜岸界。
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