Physics

Physics

1. Laminar flow

   • type of fluid (gas or liquid) flow in which the fluid travels smoothly or in regular paths, in
     • - flow is common only in cases in which the flow channel is relatively small, the fluid is moving slowly, and its viscosity is relatively high.
     • At low velocities, the fluid tends to flow without lateral mixing, and adjacent layers slide past one another like playing cards. There are no cross-currents perpendicular to the direction of flow, nor eddies or swirls of fluids. In laminar flow, the motion of the particles of the fluid is very orderly with all particles moving in straight lines parallel to the pipe walls. '

2. Turbulent flow

   • Turbulent flow is a flow regime characterized by chaotic property changes. This includes rapid variation of pressure and flow velocity in space and time. In contrast to laminar flow the fluid no longer travels in layers and mixing across the tube is highly efficient.

3. Viscous drag

4. Non newtonian fluid

5. Shear stress

6. Shear strain