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CIV E 530 - OPEN-CHANNEL HYDRAULICS
SPRING 2014 - MIDTERM 2 - SOLUTION
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PROBLEM 3: ESSAY QUESTIONS
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1.
The brute force method is direct; Newton's iteration is iterative.
Brute force method advances with the trial value; Newton's iteration uses the tangent, once the
trial value is near the root.
2.
n = 008 for lucite; n = 1 for the Everglades modeling.
3.
The are twelve (12) types of water-surface profiles in gradually varied flow.
The profiles C1 and C3 are completely horizontal.
4.
So (gravity), Sc (friction), and Froude number (hydraulics).
5.
Yes, because the permissible shear stress decreases, i.e., the water is hungry for sediment.
Problem 4
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