Calibration of Rectangular Notch

  1. Draw different types of nappe?
  2. Derive the expression for discharge over a rectangular notch?
  3. What is ventilation of weir? Why it is required?
  4. Find expression for the discharge over the triangular notch in terms of head of liquid over the crest of the notch and included angle?
  5. Prove that error in the discharge due to error in the measurement head over the rectangular notch is