针对计算高精度需要,纳入了适合非均匀网格、采用附加源项实现的QUICK格式。
QUICK method, which was adapted to non-uniformly grid and implemented by an additional source, was adopted for high-required precision.
计算结果证明,当采用非均匀圆柱坐标系下FDTD法计算时,圆柱坐标系下网格波阻抗可以较准确地计算由于网格尺寸不同造成的数值反射误差。
The results showed that MWI in cylindrical coordinates can be used to accurately calculate the numerical reflection error caused by different mesh increments in non uniform FDTD.
采用坐标变换方法,将物理平面中任意几何区域上的非均匀网格剖分映射到计算平面中规则区域上的均匀网格剖分。
In this paper, an one to one maping is used to transfer an arbitrary domain and a nonuniform grid on it in physical plane to a rectangular domain with a uniform grid in computational plane.
地表的非均匀性是普遍存在的,对不同的地表通量参数化方案来说,地面非均匀性对对网格区面积平均通量计算的影响程度可能不同。
The appearance of heterogeneity can be observed widely in nature. The surface heterogeneities have different impacts on the estimation of area-averaged flux for different parameterization schemes.
地表的非均匀性是普遍存在的,对不同的地表通量参数化方案来说,地面非均匀性对对网格区面积平均通量计算的影响程度可能不同。
The appearance of heterogeneity can be observed widely in nature. The surface heterogeneities have different impacts on the estimation of area-averaged flux for different parameterization schemes.
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