MECH $342$ Assignment $7$: Turbulent Pipe Flow

Q$1.$ Water and $($:$=0\mathrm{.}001(Pa)*(s)\}$ travels through a section of horizontal pipe as shown in the diagram below.

a$.)$ Use the Moody chart to find the flow velocity $(V).$ The pipe is made from drawn steel with roughness height $=0\mathrm{.}02mm.$ The head loss $h_f=7\mathrm{.}5m.$ Complete two iterations on the Moody chart using an initial guess of $f=0\mathrm{.}015$ for the friction factor.

b$.)$ What is the new friction factor if the pipe was instead made from cast iron $)=(0\mathrm{.}15mm?$

Q$2.$ The same section of steel pipe is connected to a water tank as shown below. What is the flow velocity at the outlet $(2)?$ Use an initial guess of $f=0\mathrm{.}015$ for the friction factor and complete one iteration on the Moody chart. Assume the head loss $(h_f)$ is unknown.

$[$Hint: This is not a simple inlet$/$outlet case, you must start from the incompressible energy equation$].$