low velocity flow

In this article (and video above), I solve a fluid mechanics and hydraulics question, similar to what you may encounter on the FE exam. 

Question:

A 8-ft wide rectangular channel carries a flow of 400 ft3/s at an initial depth of 2.1-ft before entering a jump. The sequent depth (ft) at the low velocity flow (or sub-critical) is most nearly:

1. 4.27
2. 3.83
3. 5.25
4. 7.60

Solution:

[Read more…] about FE Exam Fluid Mechanics and Hydraulics: Steady and Unsteady Flow