Question

Which among the following is a correct representation of Ryve’s formula?

(a) Qp = C1. A^2/3

(b) Qp = C1. A^1/3

(c) Qp = C1. L A^2/3

(d) Qp = C1. A

This question was posed to me in my homework.

Question is taken from Tank or Surplus Escape Weirs Design topic in section River Navigation & Tank Irrigation of Irrigation Engineering

Answer 1

Correct answer is (a) Qp = C1. A^2/3

For explanation I would say: All tank weirs generally in South India are designed on the basis of Ryve’s formula which is given by:

Qp = C1.A^2/3 where Qp is the peak flood discharge, C1 is the Ryve’s coefficient, A is the catchment area

The formula is directly applicable for free catchments in all isolated tanks.