隱式差分方程 的英文怎麼說

中文拼音 [yǐnshìchāfēnfāngchéng]
隱式差分方程 英文
implicit diffence equation
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  1. Parallel algorithms of accelerative iteration for solving implicit difference equations

    求解隱式差分方程的加速迭代并行演算法
  2. Parallel iterative algorithm for solving the cubical equation

    求解雙曲型隱式差分方程的并行迭代法
  3. In this paper, the upwind scheme and the central scheme are presented for solving 3 - d n - s equations using the cell - center finite volume spatial discretization and four - stage runge - kutta time stepping scheme, with standard convergence acceleration techniques such as local time stepping and implicit residual smoothing

    在n - s的數值計算上,採用了中心和迎風格,用格心格的有限體積法進行了空間離散,用四步龍格?庫塔法作顯時間推進,並採用了當地時間步長和光順等加速收斂措施。
  4. The explicit finite element method ( fem ) based on the varying time - step was selected to analyse the dynamic roll - pass process ; the nodes on the leading face of the steady - state elements set was extracted and projected onto a plane to give the required mesh, also called the origin mesh ; the implicit fem was selected to analyses the inter - pass transient thermal process ; a geometric part from the mesh was generated and meshed by using the quadrilateral elements, a heat transfer analysis was selected to transfer the node temperature data ; a new model was created by using hexahedral elements, mapping the node temperature and the equivalent plastic strain on the integration points

    利用基於變步長中心的顯析瞬態軋制過;提取穩態單元集節點形成截面網格;利用析軋制道次間隙瞬態溫度場;對型鋼斷面進行平面四邊形網格劃並映射節點溫度數據;利用六面體單元構建有限元析模型,映射單元節點的溫度、積點的等效塑性應變,進行數值析。
  5. High - order implicit difference method for the diffusion equation

    求解擴散的一種高精度
  6. A two - layer implicit difference schemes for solving parabolic equation of higher oder

    高階拋物型的兩層
  7. A family of implicit difference schemes for solving the parabolic equation of higher order

    解高階拋物型的一族
  8. A new high accuracy and absolutely stable implicit difference schemes for solving parabolic equations

    拋物型的一個新的高精度恆穩定的
  9. On the numerical methods for the discrete - velocity kinetic equations i. semi - implicit difference scheme

    離散速度動力學組的數值法研究半
  10. A class of implicit difference schemes with hich accuracy and absolute stability for solving parabolic partial differential equation

    拋物型的一族高精度恆穩定的
  11. 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,構造了該的一種
  12. This part analyzed and compared many kinds of solvement of dam - break, then the adopted traditional one - direction b. saint. venant equation and conceal format to calculate the proceeding of dam - break flood, then according to calculation result analyzed influence of villages located beside fabiela river from dam - break flood

    這一部首先析比較了潰壩波的各種求解法,然後採用傳統的一維聖維南組和進行了潰壩洪水演進計算,然後根據計算結果析了各種潰壩情況下洪水對河道兩岸村屯的影響。
  13. In order to resolve the question, in the thesis a simulation arithmetic of hydro - electrical system is put up. the equations of hydro - electrical system are divided to two parts, one of which consists of the differential equations of conduit system, hydro turbine and generator ' s rotator and is solved by characteristic equation arithmetic, the other of which consists of the differential equations of generator, magnetic system and grid and is solved by longge - kuta arithmetic or covert integrated arithmetic. through the alternative solving of the two parts, the simulation results of the large - disturbance transient could be abstained eventually

    為解決這一問題,本文提出了一種將水力系統和電力系統交替求解的水電系統聯合模擬演算法,即將包括輸水系統、水輪機以及機組轉子等部的水力系統作為一部,將包括同步發電機、勵磁系統以及電網等部的電力系統微作為另一鄭州大學工學碩士論文部,對前一部採用特徵線法求解,對后一部根據模型形採用龍格一庫塔法或法等演算法求解,這兩部的求解過交替進行,最終即可得到水電系統大擾動過的模擬結果。
  14. 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法:顯和交錯網格法,首次將多重網格演算法應用於彈性波的數值模擬問題,克服了交錯網格法和顯法穩定性,以及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。
  15. Based on former work, a finite difference viscous code that uses a high convergence, high accuracy, high resolution lu - sgs - ge implicit scheme and an improved fourth ( fifth ) - order high resolution muscl tvd scheme to integrate the full 3d navier - stokes equations and the low - reynolds number two - equation turbulence model is extended to simulate the flow field inside centrifugal impeller mechanism

    並且在現有工作基礎之上,將基於有限法的高收斂率、高精度、高解析度的lu - sgs - ge和四(五)階muscltvd格求解全三維navier - stokes和低雷諾數雙湍流模型的計算序推廣到離心葉輪機械內部流場的數值求解。
  16. The numerical simulation is an effective method. the main task of this dissertation is to establish a hydrodynamic and pollutant transport model, and to simulate the tide field and concentration field of hakata bay : ( 1 ) dispersing the long - wave equation on interlaced grid by adi method, a two - dimension hydrodynamic model is established to simulate the tidal flow in hakata bay under the effects of m _ 2, s _ 2, o _ 1, k _ 1 tide

    本文的主要工作是建立一個深度平均的二維水動力及污染物擴散輸移的數值模型,並對一實際海灣的潮流場及濃度場進行數值模擬: ( 1 )用深度平均淺水波動為控制,採用迎風adi有限法(交替法)在矩形交錯網格上離散潮波,建立了一個二維潮流數值模型。
  17. In this paper, a 3d finite element analysis software ( fzfx3d ) was compiled to simulate the construction process of mass concrete structures constructed with sequence method. based on the practical project xiluodu arch dam, the dam ' s construction process was simulated by a small time step size, 0. 5 or 1 days. the environmental temperature change, hydration heat rise, artificial cooling, creep, volume deformatio

    運用laplace變換法將溫度的求解表示為只與空間坐標及澆築時間有關的函數,從而避免了用法、有限元法求解時需求解聯立的因而對測點選擇的依賴,也避免了顯法求解穩定性受時間步長,測點間距大小限制的缺點,因而具有測點布置靈活的特點。
  18. Abstract : this paper discusses the different differential methods of alternating direction implicit method with initial condition and boundary conditions in detail

    文摘:詳細地研究了各種情形的求解二維拋物型初邊值問題的交替法。
  19. A family of highly accurate and absolutely stable difference schemes for solving parabolic equation of four order

    拋物型的一族高精度恆穩定的
  20. With this method, the feasibility of project can be decided preliminarily. 3. one - dimensional hydrodynamic model is built, in which implicit difference format ( preismann discretization scheme ) and " three steps method " of one - dimensional unsteady flow model is used, hydraulic calculation is done for water diversion and flow strengthen in tidal networks and the method is enhanced in which the precision is improved greatly

    建立一維水動力學模型,利用四點( preismann格)和一維河網非恆定流模型的三級解法,對感潮河網的引水增流工進行了水力計算並對計算法進行了改進,大大地提高了計算的精度。
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