Question

Reynolds number (Re) is___

• A. an experimental number used to predict the flow velocity.
• B. a number with certain dimensions
• C. a non-dimensional velocity
• D. a number which differentiates between types of flows like laminar, turbulent and transsitional.

Answer 1

Answer: (A), (C), (D)

The correct options are
A

an experimental number used to predict the flow velocity.

C

a non-dimensional velocity

D

a number which differentiates between types of flows like laminar, turbulent and transsitional.

Reynolds number is an experimental number used to predict the flow velocity in fluid flow. It is a non-dimensional velocity can be defined as the ratio of a fluid’s inertia force to the viscous forces. It is used in differentiating types of fluid flow.