Question

How does density affect fluid flow?

Answer 1

see below

Explanation:

density (`rho`) that is the ratio between mass and volume is present in Reynold's number
`Re= (rho xx d xx 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= (F xx 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