计算物理 ›› 1992, Vol. 9 ›› Issue (3): 330-334.

• 论文 • 上一篇    

用Galerkin方法分析扩散对非线性色谱流出曲线的影响

王开明, 林炳昌   

  1. 鞍山钢铁学院, 114002
  • 收稿日期:1991-02-10 修回日期:1992-03-30 出版日期:1992-09-25 发布日期:1992-09-25
  • 基金资助:
    冶金部基础研究基金

STUDY OF THE INFLUENCE OF AXIAL DISPERSION ON THE ELUTION PROFILE IN NONLINEAR CHROMATOGRAPHY USING THE GALERKIN METHOD

Wang Kaiming, Lin Bingchang   

  1. Anshan Institute of Iron and Steel Technology, Anshan, Liaoning, 114002
  • Received:1991-02-10 Revised:1992-03-30 Online:1992-09-25 Published:1992-09-25

摘要: 用Galerkin方法计算了含扩散的非线性色谱方程,计算结果表明了扩散对流出曲线及保留时间的影响。对边值条件作了讨论。对非线性代数方程组的初值选取作了适当处理。所得结果表明在扩散系数D增大时,流出图形由激波型转变为高斯型。相应的保留时间tRD的变化率由正变负。

关键词: 非线性, 色谱, 激波, 有限元, 扩散

Abstract: In this paper, Using the Galerkin method, the study is made, which is about the Inflence of axial dispersion on the elution profile and retention time tR in nonlinear chromatography, The results show that when the diffusion coefficient D increases, the elution curve changes from "shock type" to "Gauss type", and the rate of chang of tR due to D from positive to negative.

Key words: nonlinear, chromatography, shock, finite element, diffusion