Dispersion of imbibition fronts

被引：3
|
作者：
Mélean, Y [1 ]
Broseta, D
Hasmy, A
Blossey, R
机构：
[1] Inst Francais Petr, F-92852 Rueil Malmaison, France
[2] Inst Venezolano Invest Cient, Ctr Fis, Lab Fis Estadist Sistemas Desordenados, Caracas 1020A, Venezuela
[3] Univ Saarland, Ctr Bioinformat, D-66041 Saarbrucken, Germany
来源：
EUROPHYSICS LETTERS | 2003年 / 62卷 / 04期
关键词：
D O I：
10.1209/epl/i2003-00380-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have studied the dispersive behaviour of imbibition fronts in a porous medium by X-ray tomography. Injection velocities were varied and the porous medium was initially prewetted or not. At low velocity in the prewetted medium, the imbibition profiles are found to be distinctly hyperdispersive. The profiles are anomalously extended when compared to tracer fronts exhibiting conventional (Gaussian) dispersion. We observe a strong velocity dependence of the exponent characterizing the divergence of the dispersion coefficient for low wetting-fluid saturation. Hyperdispersion is absent at high imbibition velocities or when the medium is not prewetted.
引用
收藏
页码：505 / 511
页数：7
相关论文
共 50 条
  • [21] Deceleration and dispersion of large-scale coronal bright fronts
    Long, D. M.
    Gallagher, P. T.
    McAteer, R. T. J.
    Bloomfield, D. S.
    ASTRONOMY & ASTROPHYSICS, 2011, 531
  • [22] SUPERSONIC DISPERSION OF FRONTS OF MARTENSITE TRANSFORMATIONS INITIATED BY SHOCK LOADING
    MESHCHERYAKOV, YI
    KASHCHENKO, MP
    VASILKOV, VB
    ATROSHENKO, SA
    PISMA V ZHURNAL TEKHNICHESKOI FIZIKI, 1993, 19 (02): : 75 - 78
  • [23] Investigating liquid fronts during spontaneous imbibition of liquids in industrial wicks. Part I: Experimental studies
    F. Zarandi, M. Amin
    Pillai, Krishna M.
    AICHE JOURNAL, 2021, 67 (10)
  • [24] WEAK TRAVELING FRONTS FOR POPULATION-MODELS WITH DENSITY DEPENDENT DISPERSION
    GRINDROD, P
    SLEEMAN, BD
    MATHEMATICAL METHODS IN THE APPLIED SCIENCES, 1987, 9 (04) : 576 - 586
  • [25] Investigating liquid-fronts during spontaneous imbibition of liquids in industrial wicks. Part II: Validation by DNS
    F. Zarandi, M. Amin
    Pillai, Krishna M.
    Hasan, Abul Borkot Md Rafiqul
    AICHE JOURNAL, 2022, 68 (11)
  • [26] Discrete dispersion relations and Taylor-Galerkin FEM for transport of dispersed fronts
    De Vantier, BA
    Finn, JE
    INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS, 1997, 9 (01) : 59 - 70
  • [27] TRANSITION FRONTS AND STRETCHING PHENOMENA FOR A GENERAL CLASS OF REACTION-DISPERSION EQUATIONS
    Garnier, Jimmy
    Hamel, Francois
    Roques, Lionel
    DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS, 2017, 37 (02) : 743 - 756
  • [28] Semianalytical solutions for cocurrent and countercurrent imbibition and dispersion of solutes in immiscible two-phase flow
    Schmid, K. S.
    Geiger, S.
    Sorbie, K. S.
    WATER RESOURCES RESEARCH, 2011, 47
  • [29] Time-dependent dispersion coefficients for the evolution of displacement fronts in heterogeneous porous media
    Tajima, Satoshi
    Dentz, Marco
    Liu, Jiaqi
    Tokunaga, Tomochika
    ADVANCES IN WATER RESOURCES, 2024, 189
  • [30] IMBIBITION OF A FABRIC
    PEZRON, I
    BOURGAIN, G
    QUERE, D
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1995, 173 (02) : 319 - 327
12345