what is laminar flow and turbulent flow

Laminar flow occurs at lower velocities below a threshold at which the flow becomes turbulent. Re 4000 These numbers may be radically affected by surface finishes of channel walls.

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. The velocity is determined by a dimensionless parameter characterizing the flow called the Reynolds number which also depends on the viscosity and density of the fluid and dimensions of the channel. There is no mixing of adjacent layers of the fluid and they move parallel to each other and also with the walls of the pipe. Turbulent flow is a flow regime characterized by chaotic property changesThis includes rapid variation of pressure and flow velocity in space and time.

Turbulent flow is a less orderly flow regime that. Converting turbulent flow to laminar flow. The fluid flow having Reynolds number less than 2000 is called laminar flow.

In contrast to laminar flow the fluid no longer travels in layers and mixing across the tube is highly efficient. The fluid flow is very orderly ie. You can also flow the fluid with a lower density or higher viscosity.

The laminar flow always occurs when the fluid flow with low velocity and in small diameter pipes. To reduce the Reynolds number and obtain laminar flow you can reduce flow velocity or flow channel dimensions.

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