华南理工大学学报(自然科学版) ›› 2003, Vol. 31 ›› Issue (12): 81-83,85.

• • 上一篇    下一篇

多孔介质中活性流体的边界层

刘深泉 梁满发   

  • 出版日期:2003-12-20 发布日期:2022-09-27
  • 基金资助:
    国家自然科学基金资助项目 (19902005)

Boundary Layer of Reactive Flows in Porous Media

  • Online:2003-12-20 Published:2022-09-27

摘要: 讨论了多孔介质中活性流体的边界性质 ,利用内、外解的摄动方法分析了孔隙度变化引起浓度、压强变化时 ,边界层法向速度、法向梯度、扩散梯度、渗透梯度和曲率的线性关系 。

关键词: 多孔介质, 活性流体, 孔隙度, 边界层

Abstract: The property of reactive flows in porous media was discussed. With the help of perturbation method of inner and outer solution, the linear relation between the change of normal velocity, normal gradient, gradient of diffusion, gradient of infiltration and curvature and the change of concentration, the pressure induced by the change of porosity were all analyzed. The diffusion equation describing central boundary was thus obtained in theoretical method.

Key words: porous media, reactive flow, porosity, boundary layer