supersonics, as with projectile and jet propulsion

full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.

simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship′s hulls

all of the above

gravity, pressure and viscous

gravity, pressure and turbulent

pressure, viscous and turbulent

gravity, viscous and turbulent

smooth and streamline flow

laminar flow

steady flow

highly turbulent flow.

less than 2000

between 2000 and 4000

more than 4000

less than 4000

frictional force

viscosity

surface friction

all of the above