eprintid: 6916
rev_number: 4
userid: 6
dir: disk0/00/00/69/16
datestamp: 2011-11-10 19:35:21
lastmod: 2016-11-15 13:39:09
status_changed: 2011-11-10 19:35:21
type: thesis_degree
metadata_visibility: show
contact_email: shhst29@pitt.edu
item_issues_count: 0
eprint_status: archive
creators_name: Hsu, Shih-Meng
creators_email: shhst29@pitt.edu
creators_id: SHHST29
title: PROBABILITY-BASED SIMULATION OF 2-D VELOCITY DISTRIBUTION AND DISCHARGE ESTIMATION IN OPEN CHANNEL FLOW
ispublished: unpub
divisions: sch_eng_civilenvironmental
full_text_status: public
keywords:  2-d velocity distribution; maximum velocity; new slope-area method; open channel flow; discharge measurement; non-contact method
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.
date: 2004-06-09
date_type: completed
institution: University of Pittsburgh
refereed: TRUE
etdcommittee_type: committee_chair
etdcommittee_type: committee_member
etdcommittee_type: committee_member
etdcommittee_type: committee_member
etdcommittee_type: committee_member
etdcommittee_name: Chiu, Chao-Lin
etdcommittee_name: Lin, Jeen-Shang
etdcommittee_name: Mazumdar, Mainak
etdcommittee_name: Quimpo, Rafael G
etdcommittee_name: Hung, Tin-Kan
etdcommittee_email: chiu@engr.pitt.edu
etdcommittee_email: jslin@engrng.pitt.edu
etdcommittee_email: mmazumd@engrn.pitt.edu
etdcommittee_email: quimpo@engrng.pitt.edu
etdcommittee_email: tkhung@engrng.pitt.edu
etdcommittee_id: CLCHIU
etdcommittee_id: 
etdcommittee_id: 
etdcommittee_id: 
etdcommittee_id: 
etd_defense_date: 2004-04-07
etd_approval_date: 2004-06-09
etd_submission_date: 2004-04-09
etd_access_restriction: immediate
etd_patent_pending: FALSE
assigned_doi: doi:10.5195/pitt.etd.2011.6916
thesis_type: dissertation
degree: PhD
committee: Chao-Lin Chiu (chiu@engr.pitt.edu) - Committee Chair
committee: Jeen-Shang Lin (jslin@engrng.pitt.edu) - Committee Member
committee: Mainak Mazumdar (mmazumd@engrn.pitt.edu) - Committee Member
committee: Rafael G. Quimpo (quimpo@engrng.pitt.edu) - Committee Member
committee: Tin-Kan Hung (tkhung@engrng.pitt.edu) - Committee Member
etdurn: etd-04092004-170756
other_id: http://etd.library.pitt.edu/ETD/available/etd-04092004-170756/
other_id: etd-04092004-170756
citation:   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)  
document_url: http://d-scholarship-dev.library.pitt.edu/6916/1/hsu_etd2004.pdf