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  ThermoFluidCalc — Offline Fortran Execution Guide
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Calculator : Porous Media Effective Conductivity
Category   : Conduction

Files Included:
  - porous_media_cond.f90 (Fortran Source Code)
  - input.txt (Pre-configured Sample Input)

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1. How to Compile
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Make sure you have a Fortran compiler installed (like gfortran).
Run the following compilation command in your terminal:

  gfortran -O3 porous_media_cond.f90 -o porous_media_cond

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

  porous_media_cond < input.txt

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3. Input File Details
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The input file 'input.txt' contains sequential parameters separated by
newlines. Here is the structure of the included 'input.txt':

  Line 1 (Solid conductivity k_solid [W/mK]): 1.4
  Line 2 (Fluid conductivity k_fluid [W/mK]): 0.026
  Line 3 (Porosity (void fraction) epsilon): 0.4
  Line 4 (Hot temperature T_hot [C]): 100.0
  Line 5 (Cold temperature T_cold [C]): 25.0
  Line 6 (Sample thickness L [m]): 0.05
  Line 7 (Cross-section area A [m2]): 0.01

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