Transverse dispersion at high Peclet numbers in short porous media

1996 ◽  
Vol 21 (4) ◽  
pp. 286-290 ◽  
Author(s):  
C. L. Hackert ◽  
J. L. Ellzey ◽  
O. A. Ezekoye ◽  
M. J. Hall
Keyword(s):  
Porous Media ◽  
Transverse Dispersion

Experimental Investigation and Pore-Scale Modeling Interpretation of Compound-Specific Transverse Dispersion in Porous Media

2012 ◽  
Vol 93 (3) ◽  
pp. 347-362 ◽  
Author(s):  
Massimo Rolle ◽  
David Hochstetler ◽  
Gabriele Chiogna ◽  
Peter K. Kitanidis ◽  
Peter Grathwohl
Keyword(s):  
Experimental Investigation ◽  
Porous Media ◽  
Pore Scale ◽  
Scale Modeling ◽  
Transverse Dispersion ◽  
Pore Scale Modeling

scholarly journals Estimation of Longitudinal and Transverse Dispersion Coefficients in Saturated Porous Media Involving Physical Model

10.29007/ldlk ◽  
2018 ◽  
Author(s):  
Kumars Ebrahimi ◽  
Mohammad Reza Nazem ◽  
Zahra Mardani ◽  
Shahab Araghinejad ◽  
Abdolmajid Liaghat
Keyword(s):  
Porous Media ◽  
Groundwater Resources ◽  
Scale Model ◽  
Laboratory Model ◽  
Concentration Data ◽  
Dispersion Coefficients ◽  
Calculated Concentration ◽  
Plume Migration ◽  
Transverse Dispersion ◽  
Urban Population Growth

The world's urban population growth, indiscriminate use of fertilizers and chemical poisons are actually threatening groundwater resources. The main target of this paper has been tracking of distribution of a conservative tracer in a porous media and in a laboratory-scale model, to estimate the longitudinal and transverse dispersion coefficients. In this study non-cohesive sands were used to create the porous media body in the laboratory model with a grain diameter of 1-2.5 mm. Salt (NaCl) with concentrations of 5, 7.5 and 10 g/l were used as a tracer. The results of 5g/l concentration tests are reported in this paper. An EC-meter apparatus was used to measure the EC values of the tracer to monitor its plume migration. Then the collected and recorded EC data were used to calculate the tracer concentration data in different points over time, for each test. The calculated concentration data were compared with values which were obtained from the analytical solution using Fickian second law. According to the results, for instance, in the case of 5 g/l of the tracer, the obtained values of the longitudinal and transverse coefficients are equal to 3.36e-6 and 6.58e-7 m2/s, respectively.

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