Page 90 - ebook fluid mechanics_finalize

FLUID MECHANICS

d. Inclined Venturi Meter

Derivation is an expression for the rate of flow through an inclined venturi meter.

This will show that the U-type of gauge is used to measure the pressure difference.
The gauge reading will be the same for a given discharge irrespective of the
inclination of the meter.

In Figure 4.10, at the entrance to the meter; the area, velocity, pressure and

elevation are A1, v1, p1 and z1 respectively and at the throat, the corresponding

values are A2, v2, p2 and z2.

 = spec. wt of
A2, v2, p2 liquid in pipeline

A1, v1, p1 and z2
and z1

Spec.wt = g

Z1 ( z1-y )
Z2
X

y P Q

Q

Figure 4.10 : Inclined venturi meter

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