Question

What is the height of the baffle wall in case of designing inglis fall?

(a) hb = yc

(b) hb = y – y1

(c) hb = y1

(d) hb = yc – y1

The question was posed to me in a dream while sleeping

I'd like to ask this question from Canal Falls topic in chapter Canal Falls of Irrigation Engineering

Answer 1

Correct choice is (d) hb = yc – y1

For explanation I would say: The height of the baffle wall is given by hb = yc – y1 , where yc = critical depth given by yc = (q^2/g)^1/3 and y1 = 0.183 x q^0.89 x HX^-0.35 (HX = HL when no fluming)

Thickness of the baffle wall is 2/3hb and length of baffle wall is 5.25hb.