simple dimensional method

Based on the actual dimension of a big calciner, a three-dimensional turbulence flow of calciner was simulated by Realizable K-ε model and SIMPLE method under two different inlet conditions.

针对某分解炉的实际尺寸，采用Realizable k-ε模型，SIMPLE算法，二阶迎风差分格式，按两种不同的进口条件对炉内三维湍流流场进行了对比性数值模拟。

Three dimensional beam propagation method based on the series expansion method ( 3D SEM BPM) transform the BPM into the first order normal differential equations. The method has the merits of simple calculation and high calculation efficiency.

三维级数展开的光束传播法（3D SEM BPM）将BPM方程转化为一阶常微分方程组，具有计算方法简单和计算效率高的优点。

The method is suitable for three-dimensional tracking gate set because of a small amount of calculation and simple process.

该方法适合于三维空间的跟踪门设置，计算过程简单。

This paper changes the three-dimensional problem into the two-dimensional problem by making use of the mapping principle and sets up a simple and accurate method that is used to design the geometric angle of wood cutting tool.

本文应用映象原理，将空间问题平面化，进而形成了一种向量法求解木材切削刀具几何角度的简单精确的方法。