This is a turbulent region

This is a turbulent area

Will flow according to the Re value divides into three areas: Laminar entry region, transition region and rapids area, because the transition region only expressed possibly appears the laminar in this area also possibly to appear the turbulent flow, must regard the outside perturbation to decide, th

According to Re number flow in three areas: laminar, transition zone and a turbulence zone, only that may occur in this area due to the transition area laminar or turbulent flow occurs, depending on external disturbances may be, it is generally Laminar and turbulent fluid state into two States.

This is a turbulent zone;