离散误差是由于连续体被离散化模型所替代并进行近似计算所带来的,主要是由一下两方面引起的:一般情况下单位网格不可能精确地与连续模型的几何形状拟合;离散模型不能精确模拟连续体真实条件。例如在有限元分析中,离散误差是总是存在的。
数值散射是辐射传递方程近似算法中最常见的离散误差。
Numerical scattering is one of the most common discretization errors in the numerical method for radiative transfer equation.
对离散误差资料进行曲线拟合,误差曲线质量对补偿器性能至关重要。
The compensator function depends directly on the quality of the error curve, which is decided by discrete error data through curve fitting.
本文以一个典型二维涡流场问题作为计算实例,分析了■有限元法求解线性涡流场时产生离散误差的主要因素。
This paper analyses some important factors which cause discretization error in linear eddy-current problems by the finite element method.
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