Renayald number and turbulent number explain

What is laminar flow and also difine tourbulnt flow and stream flow

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Reynolds number is used to check whether the flow is laminar or turbulent. It is denoted by Re. Reynolds Number = inertial force/viscous force
Re = ρ V L / μ
ρ = density (kg/m3,)
V = velocity based on the actual cross section area of the duct or pipe (m/s)
μ = dynamic viscosity (Ns/m2)
L = characteristic length (m)
Laminar Flow - when Re < 2300
Turbulent Flow- when Re > 4000
 

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