Water Flow Simulation Program

This repository contains a Python program designed to calculate water flow characteristics in a pipe system, allowing users to simulate various aspects of water pressure, flow rate, and loss within a system. The program is especially useful for understanding water distribution in systems involving water towers, pipes, and various pipe fittings.

Features

The water_flow.py module provides the following core functions:

• Water Column Height Calculation: Calculates the height of the water column based on the elevation of the water tower and tank.
• Pressure Gain from Water Height: Computes the pressure gain due to water height using the density of water and gravitational acceleration.
• Pressure Loss Due to Pipe Friction: Estimates the pressure drop along a pipe due to factors like length, diameter, flow velocity, and material friction.
• Pressure Loss from Fittings: Accounts for pressure loss caused by pipe fittings (such as elbows or bends).
• Reynolds Number Calculation: Determines the Reynolds number to assess the flow type (laminar or turbulent) within the pipe.
• Pressure Loss from Pipe Reduction: Calculates pressure loss when there is a change in pipe diameter along the system.

How It Works

The main() function in water_flow.py prompts the user for the specifications of a water distribution system, including water tower height, pipe length, diameter, velocity, and other details. Using these inputs, the program calculates and outputs the final pressure at the endpoint, such as a household outlet.

Testing

The test_water_flow.py script includes unit tests for each function in water_flow.py, ensuring that each calculation produces accurate results within an acceptable tolerance range. The tests can be executed with the following command:

pytest -v test_water_flow.py

Dependencies

• Python 3.x
• pytest: Install with pip install pytest

Usage

1. Clone the repository.
2. Run water_flow.py to simulate a water distribution system.
3. Run test_water_flow.py to verify calculations with pytest.

This program is an ideal tool for students, engineers, and professionals looking to simulate and analyze water flow and pressure behavior in various pipe configurations.