finite difference scheme 中文意思是什麼

finite difference scheme 解釋
有限差分格式
  • finite : adj. 有限的；【語法】限定的；【數學】有窮的，有盡的。n. 〈the finite〉 有限（性）； 〈集合詞〉有限物。adv. -ly ,-ness n.
  • difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
  • scheme : n 1 計劃；方案；路線；設計。2 系統；配合；組織。3 綱目；表；清單；分類表；大綱。4 謀劃，策劃；詭...
  1. High order finite difference scheme based on non - uniform meshes for aeroacoustics applications

    非等距網格高精度差分方法用於氣動聲學問題計算
  2. ( l ) the three - dimensional equations for tidal flow are derived from the navier - stokes equations based on some assumptions. the model is based on the vincenzo casulli method, and semi - implicit finite difference scheme has been used

    （ 1 ）從navier - stokes方程上經過假設和簡化得到的三維潮流控制方程，以vincenzocasulli法，採用半顯半隱差分格式，建立了一個三維潮流數值模型。
  3. A new finite - difference method is developed for seismic modeling and reverse - time migration based upon the voronoi cell construction on irregular grids. curved velocity boundaries and irregular earth surface can be accurately represented using the irregular grid implementation. therefore the modeled and migrated results can be more accurate, and meanwhile, the efficiency is still preserved using an explicit finite - difference scheme

    本文的方法可以實現任意非規則網格上的顯式差分計算，因此該方法在保持了傳統的矩形網格差分演算法簡單、高效特點的同時，又能精確地描述彎曲界面和起伏地表，提高了有限差分地震模擬和偏移結果的精度。
  4. The details of the construction and characteristics of the new finite - difference scheme are presented in this thesis, by using both the integration theorem and the taylor expansion theory. it is proved that the new approach has the second - order accuracy on the grids with axis - symmetric voronoi cells and at least has the first - order accuracy in general. according to this character of the scheme and the computational requirements of the finite - difference approach, a striping procedure is involved to decompose the velocity model into variable spatial size grids with a nearly constant tune step preserved

    本文從積分定理和taylor展開兩個角度，詳細分析了基於voronoicell的非規則網格有限差分演算法的構造過程及性質，並且在理論上證明了本文的差分方法的精度與網格形狀的關系：當voronoicell為關于節點的軸對稱圖形時，本文差分方法具有二階精度；在一般的網格上，則至少具有一階精度。
  5. Numerical solution of poisson equation with non - uniform mesh finite difference scheme

    求解雙曲守恆律的均勻二階差分格式
  6. The numerical modeling of 3 - d elastic wave equation using a high - order, staggered - grid, finite difference scheme

    交錯網格高階差分法三維彈性波數值模擬
  7. Non - oscillatory and non - free - parameters dissipative ( nnd ) finite difference scheme ( a total variation diminishing scheme ) with second order accuracy was adopted to solve the fluid dynamic equations, a finite rate chemical reaction model was developed to calculate ingredient producing rate, and an adi over relaxation iteration technique was used to solve the electromagnetic discretized equations

    採用二階精度nnd格式求解流體力學方程組，採用有限速率化學反應模型計算組分生成率，採用交替方向隱式（ adi ）超鬆弛迭代法求解電磁場離散方程。
  8. Based on the moving least squares method and the finite difference scheme, a new element - free method is proposed and used to simulate horizontal two dimension river flow with complicated boundary

    本文通過引入滑動最小二乘法和有限差分法，得到水動力學無單元計演算法並應用於復雜邊界的河道水流運動方程。
  9. A finite difference scheme for miscible displacement flow in porous media on grids with local refinement in time and space

    多孔介質中混溶驅動問題的時空局部網格加密有限差分格式
  10. A conservative finite difference scheme for nonlinear gerdjikov - ivanov equation

    方程的守恆差分格式
  11. A new conservative finite difference scheme for nonlinear schrdinger equation

    方程的一個新的守恆差分格式
  12. A finite difference scheme for two - phase incompressible flow in porous media on grids with local refinement in time

    多孔介質中兩相不可壓縮流體的時間局部網格加密有限差分格式
  13. To maintain a logical presentation we start with the simplest finite-difference scheme.

    為了按邏輯來表達，我們從最簡單的有限差分格式開始。
  14. A plane - wave expansion method based on the effective medium theory is firstly introduced, and the new method has a better convergence than that of the pwm. as a new method for calculating the band structure of a photonic crystal, a finite difference scheme is also introduced to the governing differential equation based on the effective medium theory

    首先提出了基於等效介質理論的平面波方法，顯著地改善了平面波演算法的收斂性質；同時提出一種新的計算光子晶體能帶的有限本徵差分演算法，與已有的平面波展開法相比，新方法保留了本徵值演算法的獨特優點，同時又克服了平面波展開法的慢收斂性。
  15. A parallel finite difference scheme for fourth order parabolic equations

    四階拋物方程的一個并行有限差分格式
  16. A finite difference scheme for solving nonlinear reaction - diffusion equations

    求解非線性反應擴散方程的有限差分格式
  17. A new conservative finite difference scheme for generalized nonlinear schr dinger equation

    方程的一個新的守恆差分格式
  18. Peturbational finite difference scheme for shock - wave computing of navier - stokes equations

    方程激波計算的攝動有限差分方法
  19. Finite difference scheme

    有限差分格式
  20. A finite difference scheme for two - dimensional miscible displacement flow in porous media on grids with local refinement in time and space

    多孔介質中二維混溶驅動問題在時空局部加密復合網格上的有限差分格式
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