Fick+Reaction Solver

Online simulation of motion of chloride ions through a concrete sample. The numerical solution of Fickian diffusion and binding according to Freundlich isotherm.

Online simulation of transport of chloride ion through a concrete sample in contact with chloride solution. Fickian diffusion and binding according to Freundlich isotherm is assumed inside the sample. Method of Lines with uniform grid is used to transform partial differential equations (PDEs) to ordinary differential equations (ODEs). Resulting set of ODEs is then solved using explicit Euler's method.

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Input Data
Concentration in the left solution kg/m3
Diffusion coefficient m2/s
Density of concrete kg/m3
Porosity %
Reaction parameter k s-1
Reaction parameter Kb m/kgη
Reaction parameter η
Duration of the process days
Width of the sample m
Number of spatial points
Number of time intervals
Calculations in progress:
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Results