Laminar Flow
Laminar flow occurs when fluid flows in parallel layers with layers sliding past one another smoothly without any lateral mixing. There are no cross-currents perpendicular to the direction of flow. Laminar flow has a parabolic pattern with velocity of the layers the centre of a conduit being the maximum and gradually reducing towards the walls. A low Reynolds number below 2300 usually indicates laminar flow where as the flows with Raynolds number from 2300 to 4000 would indicated in transition between laminar and turbulent flow.