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
Experimental and Computational Investigation of Vortex Formation in a Vertical Intake Structure
Date
2013-09-13
Author
Aydın, İsmail
Köken, Mete
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
154
views
0
downloads
Cite This
Vortex formation in the head pond of a hydroelectric power plant has been studied experimentally in a scaled hydraulic model. Velocity vector field and the turbulent kinetic energy distributions were measured using an Acoustic Doppler Velocimetry (ADV). Free surface flow in the head pond was also simulated using Flow-3D software. Comparison of measured and computed flow variables were satisfactorily good, promising the use of CFD tool to identify surface vortex and calculate its strength from the numerical solution. Vortex strength was evaluated numerically and then it was shown that it can be used as a key parameter to investigate the performance of a given head pond design.
Subject Keywords
Air entraining vortices
,
Anti-vortex structures
,
Intakes
,
Intake vortices
,
Computational Fluid Dynamics
URI
https://hdl.handle.net/11511/53494
Collections
Department of Civil Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
Design and analysis of a vertical axis water turbine for river applications using computational fluid dynamics
Demircan, Eren; Aksel, Mehmet Haluk; Pınarcıoğlu, Mehmet Melih; Department of Mechanical Engineering (2014)
The main purpose of this study is to design a Darrieus rotor type vertical axis water turbine using Computational Fluid Dynamics (CFD) in order to be used in river currents. The CFD modeling is based on two dimensional numerical solution of the rotor motion using commercial Unsteady Reynolds Averaged Navier-Stokes solvers, Ansys Fluent and CFX. To validate the two dimensional numerical solution, an experimental Darrieus rotor type water turbine from literature is studied and performance of several turbulenc...
Experimental and numerical investigation of the energy harvesting flexible flag in the wake of a bluff body
Latif, Usman; Abdullah, Chaudary; Uddin, Emad; Younis, M. Yamin; Sajid, Muhamad; Shah, Samiur Rehman; Mubasha, Aamir (2018-05-01)
Inspired by the energy harvesting eel, a flexible flag behind a D-shape cylinder in a uniform viscous flow was simulated by using the immersed boundary method (IBM) along with low-speed wind tunnel experimentation. The flag in the wake of the cylinder was strongly influenced by the vortices shed from the upstream cylinder under the vortex-vortex and vortex-body interactions. Geometric and flow parameters were optimized for the flexible flag subjected to passive flapping. The influence of length and bending ...
Experimental and numerical investigation of a counter-rotating boundary layer ingesting propulsion system
Bilyaz, İbrahim Soner; Başkan Perçin, Özge; Department of Aerospace Engineering (2023-1-23)
This study investigates the performance of a boundary layer ingesting (BLI) propulsion system with a counter-rotating propulsor numerically and experimentally. The main benefit driver for a BLI propulsion system is that the propulsor ingests the boundary layer of the aircraft's fuselage, which is slower than the free stream velocity and consumes less power to generate the required thrust. The power-saving coefficient (PSC), the amount of power saved to obtain the same net streamwise force compared to the tr...
Improved combustion model of boron particles for ducted rocket combustion chambers
Kalpakli, Bora; Acar, Emir Bedig; Ulaş, Abdullah (Elsevier BV, 2017-5)
A combustion model of boron particles for detailed Computational Fluid Dynamics (CFD) based simulations of ducted rocket combustion chambers is studied. It is aimed to construct a model for combustion of boron containing gas mixtures ejected from a solid propellant gas generator. This model includes all main physical processes required to define an accurate particle combustion simulation. The reaction rate modeling in similar, previous studies are improved for ramjet combustion chambers and this model provi...
PREDICTION OF SEISMIC ENERGY-DISSIPATION IN SDOF SYSTEMS
NURTUG, A; Sucuoğlu, Haluk (Wiley, 1995-09-01)
A simple analytical procedure is developed for calculating the seismic energy dissipated by a linear SDOF system under an earthquake ground excitation. The ground excitation is specified by its pseudo-velocity spectra and effective duration whereas the SDOF system is defined by its natural period of vibration and viscous damping ratio. However, the derived relationship for the energy dissipation demand under an earthquake excitation is sensitive neither to the viscous damping ratio nor the ductility ratio w...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
İ. Aydın and M. Köken, “Experimental and Computational Investigation of Vortex Formation in a Vertical Intake Structure,” 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53494.