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In fluid dynamics, the Reynolds number Re is a dimensionless number used to determine the nature of a fluid flow. Re can be defined as the ratio of the inertia force and the viscous (friction) force and give by = density of the fluid V=velocity of the fluid = dynamic viscosity (viscosity ofthe L = characteristic length VL Re can be used to determine if flow is laminar, transient or turbulent. Re s 2300 2300 >Reynolds Enter the density of the fluid: 0.91 (% unit: Please choose unit Enter the characteristic length or diameter: 0.1 unit: m) Choose 1. flow velocity, 2. flow rate: 2 Enter the flow rate in m 3/s: 0.1 Enter the viscosity of the fluid: 0.38 (% unit: Ns/m2) Re = Better to show the unit