Second-order accuracy both in time and space can be achieved by means of an explicit predictor-corrector scheme and slope-limiting within elements.
通过采用预测校正二步时间积分和单元内引入坡度限制，该算法在时空上均可达到二阶精度。
The Euler solution is obtained using time-marching method by MacCormack two-step finite-difference scheme, which has second-order accuracy in both time and space.
应用隐式时间推进法对不同马赫数的无粘和粘性流动进行数值分析 ，给出了基于预处理方法的高阶精度隐式求解方法。
An implicit flux vector splitting form in one-step with second-order accuracy was proposed for solving the transonic flow fields of air channels and cascades of diffusers.
提出了二阶精度隐式矢通量单步差分格式并用来求解跨压器进气道、叶栅的跨音流场。
It has second order accuracy in time.
该算法在时间上具有二阶精度。
Various borehole and formation conditions were simulated using the fourth order accuracy in space and second order accuracy in time centered finite difference method.
利用空间上具有四阶精度、时间上具有二阶精度的中心差分方法，数值模拟了几种复杂井眼条件下的波场。
The theory on the implicit TVD schemes of second order time accuracy that is preferred in solving unsteady problems has been an open question for a long time.
用于非定常问题的时间二阶精度的隐式TVD格式的理论多年来一直是个空白。
This method could efficiently overcome the numerical oscillation and improve the calculation accuracy in spatial to second order.
普通的迎风差分格式只有一阶精度，修正的迎风差分格式可以把空间的计算精度提高到二阶。
The first-order second-moment method is fundamental in structural reliability analysis, its accuracy depends upon the nonlinear extent of performance functions around checking point.
一次二阶矩方法是结构可靠度分析的基本方法．一次二阶矩方法的计算精度依赖于验算点附近功能函数的非线性程度。
The framework preserved the second-order nonlinear terms and ensured the computer accuracy.
该分析框架保留了二阶非线性项，保证了随机负荷潮流的计算精度。
The scheme exhibits global second order accuracy, despite its first order local truncation error.
这种差分格式虽然只有一阶的局部截断误差，但实际具有二阶的收敛性。
Compared with first-order perturbation, second-order perturbation stochastic finite element has the advantage of higher accuracy.
与一阶摄动随机有限元相比，二阶摄动随机有限元具有较高的计算精度。
The present numerical method has the second order accuracy in time and no than the third order accuracy in space.
该格式在时间上具有二阶精度，在空间离散上不低于三阶。
An inappropriate pressure updating formula will reduce the accuracy of the pressure to at most second-order on the boundary.
而采用传统压力更新公式，压力在边界附近只有二阶精度，且格式不稳定。
The discretized schemes of the convective fluxes, diffusive fluxes and unsteady term are all of second -order accuracy. The SIMPLE algorithm is adopted to deal with the pressure-velocity coupling.
对流项、扩散项和非恒定项的离散格式均具有二阶精度，利用SIMPLE算法处理压力-速度耦合。
The main conclusions obtained in this thesis are as follow:(1) Based on FOSM, Second-order second-moment method modifies the results of FOSM, and has better calculation accuracy.
本文的主要结论有：（1）二次二阶矩法是以一次二阶矩法为基础，并对一次二阶矩法的计算结果进行二次修正，在多数情况下有着更好的计算精度。
The vertical second-order drift loads of a submarine model were also calculated. TEBEM was found to achieve higher accuracy and quick convergence.
数值计算结果表明：该方法有较高的计算精度且收敛速度快。
The vertical second-order drift loads of a submarine model were also calculated. TEBEM was found to achieve higher accuracy and quick convergence.
数值计算结果表明：该方法有较高的计算精度且收敛速度快。
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