Laminar flow or streamline flow in pipes (or tubes) occurs when a fluid flows in parallel layers, with no disruption between the layers. At low velocities, the fluid tends to flow without lateral mixing, and adjacent layers slide past one another like playing cards.
How Does Laminar Flow Work?
Laminar flow is a type of fluid movement in which the particles of the fluid move in parallel layers with no disruption or mixing between them. It is a common phenomenon in nature that occurs in many different forms, from the movement of air in the atmosphere to the flow of fluids in a pipe or tube. Laminar flow has many important applications in engineering and science, such as controlling the flow of liquids in medical equipment, improving the efficiency of cooling systems and providing a smoother ride for aircraft.
The basic principle behind laminar flow is that a fluid moving through a pipe or tube will naturally separate into layers, with each layer moving in the same direction and speed. This is because the fluid’s viscosity or internal friction causes the layers to move at different speeds, with the slower layers toward the outside and the faster layers toward the center. As the fluid moves, the layers all move in the same direction, creating a smooth and even flow.
In order to create laminar flow, engineers must design the pipe or tube so that it has a smooth, even surface. This is done through the use of machining, where the surface is polished and shaped to minimize surface roughness. The smoother the surface, the less