Example
Water at 95°C is flowing at a rate
of 2.0 ft3/s through a 60° bend, in
which there is a contraction from
4 to 3 inches internal diameter.
Compute the force exerted on the
bend if the pressure at the
downstream end is 1.1 atm. The
density and viscosity of water at
the conditions of the system are
0.962 g/cm3 and 0.299 cp,
respectively.
Example
A jet of water having a velocity of
30 m/s and a diameter of 2.5 cm
is deflected by a smooth, flat
vane, where there are no changes
in elevation or pressure before
and after impact. What is the
force of the jet on the vane?
Quiz 4 – 2013.12.04
Quiz
Water is flowing at steady state through a reducing bend as shown
below. The angle 2 = 90, and the pressure at point 2 is 1.0 atm
abs. The flow rate is 0.020 m3/s and the diameters at points 1 and
2 are 0.050 m and .030 m, respectively. Neglect frictional and
gravitational forces. Calculate the resultant forces on the bend.
TIME IS UP!!!