difference scheme 中文意思是什麼

difference scheme 解釋
差分格式
  • 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. Semi - explict difference scheme for convective equation

    對流方程的半顯式格式
  2. The integral equations governing the three - dimensional viscous flow inside the turbo - machinery in the rotating coordinate system are presented in this paper, the viscous effects are simulated by the distributed body force described by professor denton j. d. the time - marching method and explicit finite volume difference scheme are employed to solve the flow inside the turbo - machinery

    本文給出了相對旋轉坐標系下葉輪機械內部三維粘性流動的守恆型積分型方程組，利用dentonj . d .教授的粘性體積力法來模擬粘性對葉輪機械內部流動的影響，採用時間推進法和有限體積差分格式對葉輪機械內部的流動進行求解。
  3. A conservative difference scheme for nonlinear schr dinger equation involving quintic term

    方程的一個守恆差分格式
  4. Based on sale method ( simplified ale, in which the mesh may move with arbitrarily prescribed velocity with respected to the fluid, and lagrange interfaces are maintained between cells containing different material. ), the line loop integral difference scheme is derived which can be used to calculate two - dimensional elastic - plastic flow

    並在sale （ simplifiedale ，一種簡化的ale方法，網格可以任意運動，但物質界面處的網格仍然以物質速度運動，物質界面始終為lagrange網格線以保證網格中只有單物質出現）方法框架下，推導並給出了適用於彈塑性流計算的ale線積分差分格式。
  5. In the paper, river and the downstream area of dike are regarded as a whole system, and hydraulic model of coupling 1 - d river and gradual dike - break is established, therein the preissmann implicit difference scheme is applied to main river, and the fvm ( finite volume method ) is applied to the breach and polder

    本文將河道與堤壩下游區域視為一個整體，對于單一河道採用preissmann四點隱式差分格式計算，對于潰口及圩區採用有限體積法，建立了一維河道與堤壩漸潰耦聯的水力模型，也是一維、二維耦合的水流模型。
  6. The viscid flux is discretized by second - order central difference scheme. baldwin - lomax turbulence model is implemented in navier - stokes flow solver. for steady - state calculations, a four - stage runge - kutta scheme with convergence acceleration techniques such as local - time stepping and implicit residual smoothing is used

    其中，定常計算中的時間推進採用四步runge ? kutta方法，並應用了當地時間步長、隱式殘值光順等加速收斂措施；非定常計算中的時間推進採用jameson的隱式雙時間方法。
  7. 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
  8. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無振蕩（ weno ）格式及其在雙曲守恆律方程中的應用，在此基礎上作了兩個方面的工作：一是針對高頻聲波問題構造出一種基於保色散關系（ drp ）的weno有限差分格式，並對計算氣動聲學（ caa ）問題的代表性算例進行了大量數值實驗，比較了該格式捕捉波數的能力；另外，針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題，研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法，並且給出有代表性的密度滑移面問題的算例，得到一致高階精度的數值模擬結果。
  9. The main goal of this paper is to make a thorough research for the nine - point difference scheme, make clear its advantages and disadvantages, and improve it in view to its main disadvantages to raise the computational accuracy, speed and efficiency

    本文致力於對九點差分格式作較為徹底的研究，弄清其優、缺點，並針對其主要缺點作出改進，以進一步提高整個計算的精度、速度和效率。
  10. Factional step difference scheme for a class of nonlinear reaction - diffusion equation and systems

    一類非線性反應擴散方程及方程組的分數步長差分格式
  11. Three - dimensional flow over flat wall is simulated by virtue of large eddy simulation. the subgrid model is germano dynamical model and the numerical difference scheme is center difference scheme of two - order precision. the outcomes can be validated by its experimental counterpart

    亞格子模型採用germano動力模型模擬，數值差分格式採用具有二階精度的中心差分格式對平壁流動進行三維大渦模擬，模擬結果通過與實驗結果的比較得到驗證。
  12. The classic difference scheme of euler is employed to solve the forward problem, and the truncated singular value decomposition is used to solve the ill - conditioned system of algebraic equation

    用古典歐拉差分格式求解正問題，用截斷奇異值分解法求解病態方程組。
  13. Two high order accuracy implicit difference scheme for the dispersive equation ut

    的兩個高精度隱式差分格式
  14. On the numerical methods for the discrete - velocity kinetic equations i. semi - implicit difference scheme

    離散速度動力學方程組的數值方法研究半隱式差分格式
  15. This paper gives a 45 degree up - going wave equation with an absorbing layer and constructs its implicit difference scheme

    摘要給出了附加吸收層的三維45上行波方程，構造了該方程的一種隱式差分格式。
  16. ( 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。
  17. Though adopting the - coordinate transformation in the control equations and mode - splitting technique, the external mode ( surface gravity waves ) is solved by the improved double - sweep - implicit finite difference method ; the internal mode ( internal gravity waves ) untilizes the eulerian - lagrangian method, which improves the implicit - difference scheme for the vertical direction. the newly developed 3d numerical tidal model with implicit scheme has been successfully applied in the radial sandbanks area

    基於過程分裂法及垂向坐標伸縮變換，外模式採用改進型雙步全隱有限差分dsi法，內模式採用歐拉?拉格朗日公式，改進了三維垂向隱式格式，成功地建立了南黃海輻射狀沙脊群海域三維全隱格式潮流數學模型。
  18. Semi - explicit difference scheme for heat conduction equation

    熱傳導方程的半顯式格式
  19. A difference scheme with intrinsic parallelism and unconditional stability for dispersive equation

    色散方程的一個絕對穩定的本性并行格式
  20. Meanwhile, a modified newmark difference scheme and computational procedures has been proposed for fem dynamic incremental load method to the non - linearity of geometry and material

    其後，對撞擊接觸的動力學數值計算原理及關鍵理論方法在連續介質力學框架下進行了初步研究與歸納。
分享友人
分享到 Line

分享到臉書