CIV E 530 - OPEN-CHANNEL HYDRAULICS

FALL 2016 - MIDTERM 2 - SOLUTION

PROBLEM 3: ESSAY QUESTIONS

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.

    The are twelve (12) types of water-surface profiles in gradually varied flow. The profiles C1 and C3 are completely horizontal.

3.

    So (gravity), Sc (friction), and Froude number (hydraulics).

4.

    Between 20° and 40°.

5.

    Yes, because the permissible shear stress decreases, i.e., the water is hungry for sediment.
Problem 4

 
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