For a fund traveling through a pipe, the frictional resistances is primarily dep

Question

For a fund traveling through a pipe, the frictional resistances is primarily dependent on the following dimensionless parameters and. When developing a physical model of a flow with a free surface (a river, for example), we typically attempt to hold the Number constant. List two things that can be changes if a plumbing system is not delivering adequate to discharge and you wish to increase it: and. T/F There is no such thing as surface tension of air. T/F To compete the buoyant force acting on a ship, all you need to know is the ships weight, including cargo.

Explanation / Answer

frictional resistance depends on Reynolds number

so it depends on density , length of the pipe ,diamemter of thepipe

2) Reynolds number

3)

discharge = av = area of cross section x velocity of flow

discharge can be changed by changing the dia of the pipe and velocity of the flow

4)

False

5)buoyant force weight of the liquid displaced

so we need the volume of the submerged part of the ship to find the volume of fluid displaced and ehnce the weight of the fluid displaced

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