# How does density affect fluid flow?

Jun 2, 2018

see below

#### Explanation:

density ($\rho$) that is the ratio between mass and volume is present in Reynold's number
$R e = \frac{\rho \times d \times v}{\mu}$
and its increasing, increase the possibility to have a turbolent flow (when Re > 4000)
To move the fluid you have to give electric power according to the relation:
$N = \frac{F \times H}{\eta}$
where N is the Power
H is the prevalence
$\eta$ is the efficiency of the pump
and F is the mass flow of the fluid: mass flow = volum flow x density