Question

what is reynolds number?​

Answer 1

A Reynolds number is the ratio of inertial forces to viscous force and is a convenient parameter for predicting if a flow condition will be laminar.


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Answer 2

Answer:-

Reynold's Number:- It is defined as the flow patterns like of streamline, turbulent or laminar is possessed by a non - dimensional number which is known as Reynold's number. Reynold's number can be represent as

$\sf \large{{R_{e} = \frac{Inertial \: force }{Viscous \: force }}} \\ \\ \sf \bold{and} \\ \\ \sf \large\boxed {{{R_{e} = {\frac{ \rho \: v \: d}{ \mu} }}}}$

where

ρ = density of fluid having viscosity of µ

v = speed mean of flowing

d = boundry of the fluid flow or ateral dimension

µ = viscosity

Explaination:-

Some additional information:-

1. Laminar flow will be most probable when there will be higher density and lower fluid density.

2. There is no perfect value of Reynold's Number but there is certain reference as

• Streamline or Laminar < 1000
• Unsteady generally between 1000 - 2000
• Turbulent > 2000.

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