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  ThermoFluidCalc — Offline Fortran Execution Guide
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Calculator : Pipe Flow Calculator
Category   : Fluid

Files Included:
  - pipe_flow_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 pipe_flow_calculator.f90 -o pipe_flow_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:

  pipe_flow_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 (Pipe inner diameter [m]
): 0.05
  Line 2 (Pipe length [m]
): 100.0
  Line 3 (Roughness epsilon [m]
): 4.5e-5
  Line 4 (Fluid density [kg/m3]
): 998.0
  Line 5 (Fluid dynamic viscosity [Pa-s]
): 0.001002
  Line 6 (Volumetric flow rate [m3/s]
): 0.005
  Line 7 (Sum of minor loss coefficients K): 2.5

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