PHYSICS
Venturi Meter

# Venturi Meter - Find In the gauge pressure at the bottom of...

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Unformatted text preview: Find In, the gauge pressure at the bottom of tube 1. (Gauge pressure is the pressure in excess of outside atmospheric pressure.) Eqrress your answer in terms ofquanﬁﬁes given in ﬂle problem introduction and g, ﬂle magnitude of ﬂue acceleration due to - raui . 331 = ﬁ‘ﬂ‘hi Correct submit hints my answers show answer review part i The ﬂuid is pushed up tube l by the pressure ofthe ﬂuid at the base of the tube, and not E by its kinetic energi, since there is no streamline around the sharp edge of the tube. : E Thus energr is not conserved (there is turbulence at the edge ofthe tube) at the - : entrance of the tube. Since Bernoulli's law is essentially a statement of energr I 5 conservation, it must be applied sep aratelv to the ﬂuid in the tube and the ﬂuid ﬂowing : E in the main pipe. However, the pressure in the ﬂuid is the same just inside andjust - E outside the tube. : Find 1.11, the speed ofthe ﬂuidin the left end ofthe main pipe. ﬂ A2" Express your answerinterms off“, I12, g,anii eiﬂoer Al and A; or mwhichis equalto Note that this result depends on the diﬁ'erence between the heights ofthe ﬂuid in the tubes, a quantity that is more easily measured than the heights themselves. ...
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