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  ThermoFluidCalc — Standalone Fortran Execution Guide
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Calculator : Diffusion with Chemical Reaction
Category   : Masstransfer

Files Included:
  - diffusion_reaction.f90 (Fortran 90/2008 Source Code)
  - input.txt (Pre-configured Sample Input)

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1. How to Compile
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Make sure you have GNU Fortran (gfortran) or Intel Fortran (ifort) installed.
Run the following compilation command in your terminal:

  gfortran -O3 diffusion_reaction.f90 -o diffusion_reaction

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2. How to Execute
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Run the compiled binary and pipe the input.txt file into stdin:

  diffusion_reaction < input.txt

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3. Input Parameter Sequence
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Geometry (1=Slab, 2=Cylinder, 3=Sphere)
Reaction Order (0=Zero, 1=First)
Pellet Radius R [m]
Slab Half-Thickness L [m]
Effective Diffusivity De [m2/s]
Reaction Rate Constant k
Surface Concentration Cs [mol/m3]
Catalyst Bulk Density rhoCat [kg/m3]
Reference Target Thiele Modulus

Website : https://thermofluidcalc.com
