This code simulates fluid flow in a pipe to analyze flow characteristics, calculating the Reynolds number to identify the flow regime (laminar or turbulent) and determining the friction factor accordingly.

It computes the entrance length needed for fully developed flow and calculates the velocity profile across the pipe's radius.

Using the Darcy-Weisbach equation, it then calculates pressure drops along varying pipe lengths, outputting key parameters like entrance length, Reynolds number, flow regime, and friction factor.

Finally, it visualizes the velocity profile and pressure drop along the pipe length, indicating the entrance length for fully developed flow.

User can understand this concept is mostly used in pipe flow desigining... Here I am sharing the full article which explains this phenomenon of calculating the friction factor across pipe. https://chemenggcalc.com/head-loss-or-pressure-loss-calculator/ https://chemenggcalc.com/friction-factor-calculator-moodys-diagram/