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  ThermoFluidCalc — Offline Fortran Execution Guide
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Calculator : Internal Flow Convection
Category   : Convection

Files Included:
  - internal_flow_convection.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 internal_flow_convection.f90 -o internal_flow_conv

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

  internal_flow_conv < 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 (Tube Diameter D [m]
): 0.025
  Line 2 (Tube Length L [m]
): 5.0
  Line 3 (Surface Temperature Ts [Â°C]
): 100.0
  Line 4 (Inlet Temperature Tin [Â°C]
): 20.0
  Line 5 (Mass Flow Rate mdot [kg/s]
): 0.1
  Line 6 (Fluid Density [kg/m3]
): 998.0
  Line 7 (Dynamic Viscosity [Pa-s]
): 1.002e-3
  Line 8 (Thermal Conductivity k [W/m-K]
): 0.598
  Line 9 (Prandtl Number Pr
): 7.01
  Line 10 (Specific Heat Cp [J/kg-K]): 4182.0

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