reynolds number calculator

enter at least three values ​​and click calculate. the results will be displayed.

enter a value:

pipe diameter:
feet
material specific gravity:
lb/ft
material viscosity:
centipoise
speed:
ft/sec

calculation result:

reynolds number:
reynolds number calculator according to the definition of reynolds number, re=ρv^2/(ηv/l), it can be seen that the numerator of the above formula represents the fluid momentum passing through unit area per unit time, that is, the size of the fluid inertial force; v/ in the denominator l represents the velocity gradient , so the reynolds number reflects the ratio of the inertial force and the viscous force of the fluid particle. the flow state of the fluid can be judged by calculating the reynolds number, which is very important for the calculation of resistance and heat transfer coefficient along the way.
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