what is "water hammer forming process"?

Answer 1

when a flow of liquid suddenly stops.
the energy that was stored in the fluid flow must be expelled in some manner
so it transfers the forced of the fluid onto the piping,
causing kenetic energy to be forced onto the piping,
literally causing a hitting sound,
thus a hammering sound,
(a knocking sound)
some times more than one knocking sound,
the kinetic energy may bounce off the piping
and travel backward to the next obstruction in the piping,
(such as a corner in the piping)
and bounce back again,
over and over again,
this is what happens when you hear pipes rattling,
even if the fluid is flowing the kenitic energy wave will travel very rapidly in a flowing liquid to cause a hammering sound at the next corner
but flowing liqiud and corners and distance the wave travels,
will decrease the strenght of kenetic energy wave
instead of rattling
you can hear just one sound
one knocking sound,
(a hammering sound)
this energy may be called entropy energy
there is also enthropy energy where energy is stored as heat
such as steam powered plants that turn turbines.
by temperature and pressure you can calculate the amount of energy that
will be produced when the fluid flashes into steam

Answer 2

Water Hammer Ppt