nnd的翻译

The time splitting method is used to split the distribution function equations into the colliding relaxation equation and the convection movement equations. The NND finite difference method is adopted and extended to solve them.

采用时间分裂法，将简化速度分布函数松弛变化方程分解为源项碰撞变化方程、对流运动方程，进行耦合计算，应用NND耗散差分方法直接模拟气体分子速度分布函数；

The Extentions of NND Schemes and Application to Viscous Flow Calculations

NND格式的推广及在粘流计算中的应用

NND schemes were studied for initial vale problem of a scalar conservation law.

针对一维单个守恒律的初值问题研究了NND格式，在已有的数值方法的基础上，提出了一类隐式迎风格式，并证明了它是NND格式。