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  ThermoFluidCalc — Offline Fortran Execution Guide
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Calculator : Drag Force Calculator
Category   : Fluid

Files Included:
  - drag_force_calculator.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 drag_force_calculator.f90 -o drag_calc

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

  drag_calc < 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 (Object shape (1=Sphere, 2=Cylinder, 3=Flat Disk, 4=Streamlined body)
): 1
  Line 2 (Characteristic dimension (Diameter/Length) [m]
): 0.1
  Line 3 (Flow velocity [m/s]
): 10.0
  Line 4 (Fluid density [kg/m3]
): 1.225
  Line 5 (Fluid dynamic viscosity [Pa-s]): 1.81e-5

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ThermoFluidCalc — https://thermofluidcalc.com
