Reynold’s Number

ØAt
sufficiently high velocity, a fluid flow can change from streamline to turbulent flow

–The onset of
turbulence can be found by a factor called the Reynold’s Number, RN

–If RN = 2000
or below, flow is streamline

–If 2000 <RN<3000, the flow is
unstable

–If RN = 3000 or above, the flow is turbulent