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  ThermoFluidCalc — Offline Fortran Execution Guide
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Calculator : FVM Solver Time Step Estimator
Category   : Cfd

Files Included:
  - fvm_timestep.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 fvm_timestep.f90 -o fvm_timestep

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

  fvm_timestep < 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 (Calculation Mode (1=Quick Single-Face, 2=Multi-Face Convective, 3=Multi-Face Diffusive, 4=Multi-Face Combined)\nSafety factor (CFL)\nCell volume [m3]\nConvective velocity [m/s]\nFace area [m2]): 1
  Line 2 (Parameter 2): 0.9
  Line 3 (Parameter 3): 1.0
  Line 4 (Parameter 4): 2.0
  Line 5 (Parameter 5): 0.5

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ThermoFluidCalc — https://thermofluidcalc.com
