Question

Find the discharge over triangular notch of angle 50° when the head over the V notch

(a) .93 m^3/min

(b) 1.45 m^3/min

(c) .88 m^3/min

(d) .90 m^3/min

This question was posed to me by my school teacher while I was bunking the class.

My question is from Discharge over a Rectangular, Triangular, Trapezoidal & Stepped Notch topic in section Orifices, Mouthpieces, Notches and Weirs of Fluid Mechanics

Answer 1

The correct option is (a) .93 m^3/min

To explain I would say: Q = 8/15 * √2g * H^1.5 * tan(x)

Here, x is the angle.

     = 8/15 * √19.62 * .22^1.5 * tan(50)

     = .93 m^3/min.