Question
Download Solution PDFIf the flow is critical in a channel then : (Symbols have normal meanings)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Critical Flow:
It is defined as the flow for which the specific energy is minimum and Froude’s number is equal to unity.
Froude’s no. (Fr) =
Where,
Inertial force = ρ × Q × v
(ρ = Density, Q = Discharge, v = velocity)
Gravity force = ρ × g × V;
(ρ = Density, g = Gravity acceleration, V = Volume)
Now,
(∵ A = L × T, ν = Q/A)
A = Area, L = Length, and T = Top width
Now, for a critical flow Fr = 1
Q2T = gA3
Last updated on Mar 26, 2025
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