Venturi’s Tube

The Venturi tube is a fundamental tool for educational laboratories in physics and engineering, used to help students understand the relationship between fluid flow, pressure, and velocity. During an experiment, students can measure the pressure and velocity of the fluid at various points along the tube and observe the effect of changes in flow velocity on pressure.

The tube is designed with a narrower section in the middle, where the fluid speeds up, followed by a wider section, where the velocity decreases and the pressure increases. This pressure difference is used to calculate the fluid’s velocity, employing Bernoulli’s equation or the Continuity equation—two essential tools in engineering and fluid mechanics.

Educational Goals:

Study of Fluid Flow: Students learn how changes in the pipe’s diameter affect the velocity and pressure of the fluid.
Development of Fluid Mechanics Equations: Using pressure and velocity data, students can apply Bernoulli’s and Continuity equations to analyze the flow.
Practical Understanding of Physics: The Venturi tube allows students to observe and understand the conservation of energy in a fluid system, as well as the connection between pressure and flow velocity.

This type of experiment is ideal for educators who wish to offer their students a practical, hands-on experience in studying fluid mechanics, enhancing their understanding of fundamental concepts in physics and engineering.

The Venturi tube is an experimental device used to demonstrate and study fluid flow, the relationship between pressure and velocity, and the conservation of energy within a fluid. The basic operating principle of the Venturi tube is based on the phenomenon discovered by Giovanni Venturi, which shows that when a fluid flows through a pipe and passes through a narrower section, its velocity increases and its pressure decreases.