Turbulence Production Due to Secondary Vortex Cutting in a Turbine RotorSource: Journal of Engineering for Gas Turbines and Power:;1985:;volume( 107 ):;issue: 004::page 1039Author:A. Binder
DOI: 10.1115/1.3239808Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Measurements of the unsteady flow field near and within a turbine rotor were made by means of a Laser-2-Focus velocimeter. The testing was performed in a single-stage cold-air turbine at part-load and near-design conditions. Random unsteadiness and flow angle results indicate that the secondary vortices of the stator break down after being cut and deformed by the rotor blades. A quantitative comparison shows that some of the energy contained in these secondary vortices is thereby converted into turbulence energy in the front part of the rotor. An attempt is made to explain this turbulence energy production as caused by the vortex breakdown.
keyword(s): Turbulence , Rotors , Turbines , Vortices , Cutting , Stators , Unsteady flow , Blades , Testing , Flow (Dynamics) , Lasers , Measurement , Stress , Velocimeters , Design AND Energy generation ,
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contributor author | A. Binder | |
date accessioned | 2017-05-08T23:20:06Z | |
date available | 2017-05-08T23:20:06Z | |
date copyright | October, 1985 | |
date issued | 1985 | |
identifier issn | 1528-8919 | |
identifier other | JETPEZ-26626#1039_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/99764 | |
description abstract | Measurements of the unsteady flow field near and within a turbine rotor were made by means of a Laser-2-Focus velocimeter. The testing was performed in a single-stage cold-air turbine at part-load and near-design conditions. Random unsteadiness and flow angle results indicate that the secondary vortices of the stator break down after being cut and deformed by the rotor blades. A quantitative comparison shows that some of the energy contained in these secondary vortices is thereby converted into turbulence energy in the front part of the rotor. An attempt is made to explain this turbulence energy production as caused by the vortex breakdown. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Turbulence Production Due to Secondary Vortex Cutting in a Turbine Rotor | |
type | Journal Paper | |
journal volume | 107 | |
journal issue | 4 | |
journal title | Journal of Engineering for Gas Turbines and Power | |
identifier doi | 10.1115/1.3239808 | |
journal fristpage | 1039 | |
journal lastpage | 1046 | |
identifier eissn | 0742-4795 | |
keywords | Turbulence | |
keywords | Rotors | |
keywords | Turbines | |
keywords | Vortices | |
keywords | Cutting | |
keywords | Stators | |
keywords | Unsteady flow | |
keywords | Blades | |
keywords | Testing | |
keywords | Flow (Dynamics) | |
keywords | Lasers | |
keywords | Measurement | |
keywords | Stress | |
keywords | Velocimeters | |
keywords | Design AND Energy generation | |
tree | Journal of Engineering for Gas Turbines and Power:;1985:;volume( 107 ):;issue: 004 | |
contenttype | Fulltext |