CE632-COMPUTATIONAL HYDRAULICS AND HYDROLOGY
SPRING 2002
MIDTERM EXAM
MARCH 12, 2002, 1900-2015
Name: ______________________ S.S. No. ________________ Grade: _______
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Instructions: Closed book, closed notes. Use engineering paper.
When you are finished, staple your work in sequence,
and return this sheet with your work. Answer only 10 questions.
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Compare the celerity and attenuation properties of
kinematic, diffusion, dynamic, and inertial (gravity)
waves.
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What do overland flow and slow-rising flood waves have in common
that they lend themselves to description by kinematic and diffusion
waves?
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Describe the importance of the reference channel length,
i.e., the distance measured along the channel in which the
river elevation falls by an amount equal to its depth.
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What is the main message of Cunge's paper?
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How does the variable-parameter Muskingum-Cunge method differ
from its constant-parameter counterpart?
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Describe the physical and numerical conditions under which the
Muskingum-Cunge method is applicable and accurate.
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Why is the looped-rating Muskingum-Cunge routing better than the weighted
Preismann scheme used in dynamic wave models?
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What causes waves to attenuate in unsteady flow?
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What is the message of the paper entitled
``Verification of theory of roll wave formation''?
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How does cross-sectional shape determine stability?
Explain.
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Under what
four physical conditions is the kinematic shock more likely to
develop?
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In surface water modeling,
why is it better to neglect both inertia terms instead of just one?
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