# Question: consider a series of geometrically similar passages of circular crosssection...

###### Question details

Consider a series of geometrically similar passages of circular
cross-section. A change in any

length dimension produces proportionate changes in all other length
dimensions. In the case

above, a fluid of such low viscosity flows through the passage that
viscous stresses on any

particle of fluid are negligible compared with inertial stresses.
Passages of different size are to

be considered, all with the same incompressible fluid entering the
duct with the same velocity

V1. Indicate whether the following increases, decreases, or stays
the same as D1 increases:

(a) The value of V2

(b) The volume rate of flow

(c) The value of (p1-p2) / rho*V12

(d) The value of (p1-p2)

(e) The mass rate of flow per unit cross-sectional area at section
2