Then this paper studied the effect of diffusioncoefficient on concentration distribution and the conditions of substitution with numerical dispersion for physical diffusion.
通过将该半解析解与忽略扩散的数值解进行对比分析，讨论了数值弥散代替物理扩散的条件。
2
In mine mass transfer the longitudinal dispersioncoefficient is by far greater than the turbulent diffusion coefficient.