Acceleration and centralization of a back-diffusion process: Effects of EDTA-2Na on cadmium migration in high- and low-permeability systems

2020 ◽  
Vol 706 ◽  
pp. 135708 ◽  
Author(s):  
Xueji You ◽  
Shuguang Liu ◽  
Chaomeng Dai ◽  
Guihui Zhong ◽  
Yanping Duan ◽  
...  
Keyword(s):  
Diffusion Process ◽  
Low Permeability ◽  
Back Diffusion ◽  
Process Effects

Field-scale forward and back diffusion through low-permeability zones

2017 ◽  
Vol 202 ◽  
pp. 47-58 ◽  
Author(s):  
Minjune Yang ◽  
Michael D. Annable ◽  
James W. Jawitz
Keyword(s):  
Low Permeability ◽  
Back Diffusion ◽  
Field Scale

Contaminant back-diffusion from low-permeability layers as affected by groundwater velocity: A laboratory investigation by box model and image analysis

2018 ◽  
Vol 622-623 ◽  
pp. 164-171 ◽  
Author(s):  
Fabio Tatti ◽  
Marco Petrangeli Papini ◽  
Giuseppe Sappa ◽  
Massimo Raboni ◽  
Firoozeh Arjmand ◽  
...  
Keyword(s):  
Image Analysis ◽  
Laboratory Investigation ◽  
Box Model ◽  
Low Permeability ◽  
Back Diffusion ◽  
Groundwater Velocity

Back Diffusion from Thin Low Permeability Zones

2014 ◽  
Vol 49 (1) ◽  
pp. 415-422 ◽  
Author(s):  
Minjune Yang ◽  
Michael D. Annable ◽  
James W. Jawitz
Keyword(s):  
Low Permeability ◽  
Back Diffusion

Burgers fluid flow in perspective of Buongiorno’s model with improved heat and mass flux theory for stretching cylinder

2020 ◽  
Vol 92 (3) ◽  
pp. 31101
Author(s):  
Zahoor Iqbal ◽  
Masood Khan ◽  
Awais Ahmed
Keyword(s):  
Diffusion Process ◽  
Mathematical Formulation ◽  
Thermal Relaxation ◽  
Mass Diffusion ◽  
Stretching Cylinder ◽  
Discussion Section ◽  
Buongiorno’S Model ◽  
Homotopy Analysis ◽  
Burgers Fluid ◽  
Diffusion Phenomena

In this study, an effort is made to model the thermal conduction and mass diffusion phenomena in perspective of Buongiorno’s model and Cattaneo-Christov theory for 2D flow of magnetized Burgers nanofluid due to stretching cylinder. Moreover, the impacts of Joule heating and heat source are also included to investigate the heat flow mechanism. Additionally, mass diffusion process in flow of nanofluid is examined by employing the influence of chemical reaction. Mathematical modelling of momentum, heat and mass diffusion equations is carried out in mathematical formulation section of the manuscript. Homotopy analysis method (HAM) in Wolfram Mathematica is utilized to analyze the effects of physical dimensionless constants on flow, temperature and solutal distributions of Burgers nanofluid. Graphical results are depicted and physically justified in results and discussion section. At the end of the manuscript the section of closing remarks is also included to highlight the main findings of this study. It is revealed that an escalation in thermal relaxation time constant leads to ascend the temperature curves of nanofluid. Additionally, depreciation is assessed in mass diffusion process due to escalating amount of thermophoretic force constant.

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