Rotating rate (rpm)

Re

R

Flow regime

2 - 10

100 - 400

1 - 5

TVF

10 - 30

400 - 1500

5 - 20

WVF

30 - 60

1500 - 3000

20 - 40

MWVF

60 - 350

3000 - 17,000

40 - 200

TTVF