Hsu, Shih-Meng
(2004)
PROBABILITY-BASED SIMULATION OF 2-D VELOCITY DISTRIBUTION AND DISCHARGE ESTIMATION IN OPEN CHANNEL FLOW.
Doctoral Dissertation, University of Pittsburgh.
(Unpublished)
Abstract
A probability-based method is presented that can be used to simulate 2-D velocity distribution in rectangular open channels and to estimate the flow discharge. The method is based on Chiu's velocity distribution equation. A technique for estimating a parameter of 2-D velocity equation has been developed, by which the 2-D velocity distribution in rectangular open channels can be simulated by using one or several velocity samples, or even without using any velocity data. The present study also developed an efficient method of discharge estimation in rivers, which is applicable regardless of whether flow is steady or unsteady. It only requires a quick velocity sampling. The relation between the surface velocity and the vertical mean velocity has been studied. It can be used for developing a non-contact method of discharge measurement.Under the same framework of analysis, a new slope-area method has been developed to determine the flow discharge. It can reduce errors due to the uncertainties in Manning's n and the energy coefficient that exist in the widely-used slope-area method.
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Details
| Item Type: |
University of Pittsburgh ETD
|
| Status: |
Unpublished |
| Creators/Authors: |
|
| ETD Committee: |
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| Date: |
9 June 2004 |
| Date Type: |
Completion |
| Defense Date: |
7 April 2004 |
| Approval Date: |
9 June 2004 |
| Submission Date: |
9 April 2004 |
| Access Restriction: |
No restriction; Release the ETD for access worldwide immediately. |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
Swanson School of Engineering > Civil and Environmental Engineering |
| Degree: |
PhD - Doctor of Philosophy |
| Thesis Type: |
Doctoral Dissertation |
| Refereed: |
Yes |
| Uncontrolled Keywords: |
2-d velocity distribution; maximum velocity; new slope-area method; open channel flow; discharge measurement; non-contact method |
| Other ID: |
http://etd.library.pitt.edu/ETD/available/etd-04092004-170756/, etd-04092004-170756 |
| Date Deposited: |
10 Nov 2011 19:35 |
| Last Modified: |
15 Nov 2016 13:39 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/6916 |
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