研究还发现振荡流场长期输运作用数值模拟适用迎风差分格式，而不适用中心差分格式。
In addition, this study has discovered that the up-wind differencing but not the central differencing is fit to simulate the long-term transport of the oscillatory current.
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。
Various borehole and formation conditions were simulated using the fourth order accuracy in space and second order accuracy in time centered finite difference method.
将该数值模拟技术应用于南京奥林匹克体育中心体育场的随机风荷载模拟，计算结果表明了该方法的有效性。
The proposed method is applied in the numerical simulation of random wind load on Nanjing Olympic Stadium. The results verify the effectiveness and efficiency of the simulation method.
建立了单基发射药柱热自燃的数学模型，根据模型利用数值模拟的方法计算了单基发射药的中心温度与其剩余能量，并对中心温度的模拟结果与实验结果进行了比较。
A mathematical model of single base propellant column is established, the core temperature and residual energy of single base propellant are calculated by means of numerical simulation and this model.
由于对流为主的弥散方程具有双曲性质，中心差分格式虽然关于空间步长具有二阶精度，但会产生数值弥散和非物理力学特性的数值振荡，使数值模拟失真。
Due to the hyperbolic properties of convection-dominate dispersion equations, the central difference formula often cause numerical dispersion and oscillation even it has two-order precision in space.
文中采用数值模拟的方法，针对半球状食品的解冻时间及其中心温度变化进行数值计算和分析，并通过试验进行验证。
In this paper, the thawing time and center temperature of hemispherical foods were analysed and calculated by numerical simulation method, which were also confirmed using the experimental method.
文中采用数值模拟的方法，针对半球状食品的解冻时间及其中心温度变化进行数值计算和分析，并通过试验进行验证。
In this paper, the thawing time and center temperature of hemispherical foods were analysed and calculated by numerical simulation method, which were also confirmed using the experimental method.
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