contestada

Which parameter tells whether flow disturbances will be ampified or attenuated? Which is a ratio of inertia forces to viscous force? Re, Nu, Pr,Gz

Respuesta :

Answer:

Re

Explanation:

 Reynolds number tell us the type of flow.By observing the Reynolds number we can say that this is laminar flow or this is turbulent flow.It is denoted by Re.

Reynolds number is the ratio of inertia force to the viscous force.

[tex]Re=\dfrac{F_i}{F_v}[/tex]

[tex]Re=\dfrac{\rho VD_h}{\mu }[/tex]

For pipe flow

if Re>4000⇒Flow is turbulent

if Re<2000⇒Flow is laminar