a)
What is meant by water hammer? Deviate an expression for the rise of
pressure when the following water in a pipe is brought to rest by closing the
valve gradually.
b)
A sphere of 4cm diameter made of aluminum (sp.gv.=2.8) is attached to a
string and suspended from the roof of a wind tunnel test section. If an air
stream of 30ms-1 flows past the sphere, find the inclination of the string and
tension in the string.
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