Laminar and Turbulent Flow in Tubes
Flow in laminar regime
In a laminar regime (Re<2100), takes place almost exclusively by conduction (Sieder and Tate)
Flow in transition regime:
For 2100<Re<10 000, the following expression is used:
Flow in Turbulent regime
For fully developed turbulent flow the Nusselt number (Dittus–Boelter equation)
1. For flow over a flat plate
Laminar:
Turbulent:
2. For flow over a cylinder (Churchill and Bernstein):
3. Flow over a sphere (Whitaker):
