Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Prediction of downpull on high head gates using computational fluid dynamics
Download
index.pdf
Date
2014
Author
Uysal, Mehmet Akış
Metadata
Show full item record
Item Usage Stats
226
views
173
downloads
Cite This
For design purposes it is important to predict the downpull forces on the tunnel gates installed in the intake of a hydropower plant. In this study downpull forces on the gates are evaluated for different closure rates and for different gate lip geometries using computational fluid dynamics and the results are compared to an existing experimental study. Commercial ANSYS FLUENT software is used in the calculations. It is found that downpull coefficients obtained from computational study showed good agreement with the values calculated from the existing experimental study.
Subject Keywords
Hydraulic gates
,
Hydraulic structures
,
Hydraulic engineering
,
Computational fluid dynamics
URI
http://etd.lib.metu.edu.tr/upload/12616943/index.pdf
https://hdl.handle.net/11511/23355
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Prediction of downpull on closing high head gates
Aydın, İsmail; DÜNDAR, Onur (2006-01-01)
Downpull on tunnel gates installed in the intake structure of a hydroelectric power plant was studied experimentally using a hydraulic model. The pressure distribution on the gate lip surface was measured, and the lip downpull was evaluated by surface-area integration of the measured pressure distribution. An easy to use lip downpull coefficient was defined as a function of the lip angle and gate opening. The lip downpull coefficient function is linked to a one-dimensional mathematical model of unsteady flo...
Hydraulic characteristics of tyrolean weirs having steel racks and circular-perforated entry
Şahiner, Halit; Göğüş, Mustafa; Department of Civil Engineering (2012)
Tyrolean type water-intake structures are commonly used on mountain rivers to supply water to hydropower stations. The amount of water to be diverted from the main channel is the major concern in these kind of structures and should not be less than the design discharge. In this study a physical model of a Tyrolean type water-intake structure was built at the laboratory and the diverted flow from the main channel through the intake structure having steel racks and perforated plates of different types were me...
Development of a computer software for hydraulic design of small hydropower facility
Alimoğlu, Emir; Yanmaz, A Melih; Bozkuş, Zafer; Department of Civil Engineering (2012)
Run-of-river type hydroelectrical power plants are the facilities that use only the available flow on the river without storing it to generate electrical energy. These kind of facilities are composed of structural components such as diversion weir, conveyance line, forebay, penstock and power house. In this thesis, a computer program called “MiniHEPP Hydraulic Design” is developed in order to perform the hydraulic design of run-of-river type hydropower plants. This program which runs under the Windows opera...
Investigation of interaction between pressure relief valve and turbines during a transient flow in hydropower plant
Çetintaş, Mehmet Ali; Bozkuş, Zafer; Çelebioğlu, Kutay; Department of Civil Engineering (2022-2)
The main goal of the present study is to investigate the effect of pressure relief valve (PRV) on the hydraulic transients generated by multiple turbine operations. To achieve this goal, a numerical model of KEPEZ-I Hydropower plant is constructed in the Bentley HAMMER software, which employs the Method of Characteristics (MoC) for computations. The MoC has been proven worldwide as a versatile and accurate tool for solving non-linear, hyperbolic, partial differential equations in space-time domain for hydra...
Effect of hydraulic parameters on the formation of vortices at intake structures
Baykara, Ali; Göğüş, Mustafa; Köken, Mete; Department of Civil Engineering (2013)
The aim of this experimental study was to investigate the hydraulic conditions at which air-entraining vortices would form in front of horizontal intakes and to determine the ways of eliminating the formation of these vortices by testing anti-vortex devices. For these reasons, a series of experiments were conducted in an experimental setup composed of a reservoir having the dimensions of 3.10 m x 3.10 m x 2.20 m and a pump connected to the intake pipe. Within the reservoir, between the concrete side walls a...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. A. Uysal, “Prediction of downpull on high head gates using computational fluid dynamics,” M.S. - Master of Science, Middle East Technical University, 2014.