Applicability Analysis of Air Filter Based on Infiltration Model of Porous Media

2021 ◽  
Vol 11 (01) ◽  
pp. 19-28
Author(s):  
进军 卢
Keyword(s):  
Porous Media ◽  
Air Filter ◽  
Infiltration Model

scholarly journals Coupled infiltration model of unsaturated porous media for steady rainfall

2016 ◽  
Vol 56 (6) ◽  
pp. 1071-1081 ◽  
Author(s):  
Yongmin Kim ◽  
Sangseom Jeong ◽  
Jaehong Kim
Keyword(s):  
Porous Media ◽  
Unsaturated Porous Media ◽  
Infiltration Model

Determination of Sorption Isotherm Based on the Measured Bottom Contaminant Flux

2014 ◽  
Vol 353 ◽  
pp. 280-285
Author(s):  
Jozef Minár ◽  
Jozef Kačur
Keyword(s):  
Porous Media ◽  
Adsorption Isotherm ◽  
Sorption Isotherm ◽  
Distance Function ◽  
Pressure Head ◽  
Richards Equation ◽  
Porous Media Flow ◽  
Contaminated Water ◽  
Infiltration Model ◽  
Contaminant Flux

We determine the sorption isotherm in the infiltration model of contaminated water into porous media. We assume that the contaminated water infiltrates into the dry porous media, flow through the sample and flows out at the other side of the sample. We suppose that the contaminant dissolved in the water reversibly adsorbs into the porous media. We use the Richards equation with van Genuchten relation between effective saturation and pressure head. Further, we use Fick’s law to model the contaminant transport in the water and arbitrary adsorption isotherm to model the evolution of the adsorption. By running the direct problem simulation, we obtain the “measurements” of the expelled water mass and its concentration. Then we “forget” the adsorption isotherm function. We solve this inverse problem by evaluating the gradient of the distance function (between “measured” and computed bottom contaminant flux) in an iterative way. We construct the gradient (variation) of the distance function by solving the corresponding dual system of partial differential equations.

VELOCITY DISTRIBUTION EFFECTS IN AIR FILTER TESTING

2001 ◽  
Vol 19 (1) ◽  
pp. 1-21 ◽  
Author(s):  
FRANK CHAMBERS ◽  
ABDEL AL-SARKHI ◽  
SHENGHONG YAO
Keyword(s):  
Velocity Distribution ◽  
Air Filter

Air-Filter for Wine Casks

1884 ◽  
Vol 18 (445supp) ◽  
pp. 7102-7102
Keyword(s):  
Air Filter
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