Inclination angle of converging conical tube of Venturimeter - Fluid Mechanics

Q.  Venturimeter consists of short converging conical tube which has a total inclination angle of
- Published on 04 Aug 15

a. 11 ± 1o
b. 21 ± 1o
c. 30 ± 1o
d. 60 ± 1o

ANSWER: 21 ± 1o

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    Discussion

  • Pankaj   -Posted on 28 Sep 15
    Venturimeter is a rate of fluid flow measuring device which works on Bernoulli's principle. According to Bernoulli's principle, the velocity head increases in an accelerated flow by reducing cross sectional area of the flow passage.
    Venturimeter consists on a short converging cone which has total included angle of 21 ± 1o leading to a cylindrical portion of short length called throat. Diameter of the throat varies between 1/3 to 3/4 of pipe diameter. The second end of the throat is connected to a diverging section know as diffuser. The diffuser has total included angle 5o to 7o which is again connected to main pipeline.

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