例句與造句

1. Convergence is accelerated by means of local time stepping , implicit residual smoothing . the numerical results have been obtained for the flows over n ac ago 12 or rae2822 airfoils
   并且基于點云離散結(jié)構(gòu)，引入了當?shù)貢r間步長、殘值光顧等加速收斂技術(shù)，數(shù)值模擬了對稱和非對稱翼型繞流，獲得較好的計算結(jié)果。
2. In order to accelerate the convergence , residual smoothing and local time stepping were employed . in the same time , by improving prolongation operator , a new multi - grid scheme which can combine well with the algorithm of this thesis
   為加速計算收斂速度，除了采用當?shù)貢r間步長和局部殘差光順技術(shù)外，通過改造插值算子，提出了一種能夠與本文算法很好地結(jié)合的多重網(wǎng)格法。
3. In order to accelerate the convergence speed , we employ the local time step , and implicit residual smoothing methods . finally , we use this method to get the steady solution of the flow around naca0012 and naca4412 airfoil at very low speed and some basic unsteady solution
   本文對在低馬赫數(shù)下繞naca0012翼型和naca4412翼型的定常流場進行了求解，結(jié)果和實驗基本吻合，并對非定常運動情況進行了初步模擬研究，得出了一些有意義的結(jié)果。
4. 4 . a 2 - d and 3 - d euler equations and n - s equations are solved using the cell - centered finite volume method and four - step runge - kutta scheme on the cartesian grids with standard convergence acceleration techniques such as local time stepping , enthalpy and implicit residual smoothing
   使用jameson中心有限體積法和runge - kutta時間推進方法，求解了關(guān)于二維、三維復雜流場的euler 、 navier - stokes方程，采用了當?shù)貢r間步長、隱式殘值光順等多種加速收斂方法。
5. 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采用四步runge ? kutta方法，并應(yīng)用了當?shù)貢r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采用jameson的隱式雙時間方法。
6. It's difficult to find residual smoothing in a sentence. 用residual smoothing造句挺難的
7. The explicit method is widely used for its simpleness and little memory consumed with local time step and variable coefficients implicit residual smooth to accelerate the convergence procedure . according to yoon and jameson ' s ideas , an efficient implicit lu - sgs algorithm is carefully constructed by combing the advantages of lu factorization and symmetric - gauss - seidel technique in such a way to make use the l and u operators scalar diagonal matrices , thus the numeric algorithm requires only scalar inversion . the computational efficiency is greatly improved with this scheme
   顯式方法具有簡單，消耗內(nèi)存小等優(yōu)點，并采用當?shù)貢r間步長、變系數(shù)隱式殘值光順等加速收斂措施，在定常流動的模擬中得到了廣泛的應(yīng)用;根據(jù)yoon和jameson提出的簡化正、負矩陣分裂，構(gòu)造的l 、 u算子只需進行標量對角陣求逆，極大提高了流場數(shù)值求解過程的計算效率;采用newton類型的偽時間子迭代技術(shù)使時間推進精度提高至二階。
8. 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方程的數(shù)值計算上，采用了中心差分格式和迎風格式，用格心格式的有限體積法進行了空間離散，用四步龍格?庫塔法作顯式時間推進，并采用了當?shù)貢r間步長和隱式殘差光順等加速收斂措施。
9. The cell - centered symmetric finite volume arithmetic and runge - kutta time stepping scheme are performed to solve euler equation . the two order and four order artificial dissipation is introduced for stability , local time stepping and implicit residual smoothing technique is applied to save computer time
   在求解euler方程方面，采用格心格式的有限體積法進行空間離散，四步runge - kutta法作時間推進，二階、四階人工耗散作為穩(wěn)定措施，還采用當?shù)貢r間步長和隱式殘值光順提高收斂速度。