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Effect of Secondary Flows on Heat Transfer of a Gas Turbine Blade
Joint Authors
Abdo, Samia Nasreldin
al-Batsh, Hashim M.
Nada, Samih A.
El-Tayesh, Abdelgalil A.
Source
International Journal of Rotating Machinery
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-20
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This study presents experimental and numerical investigation for three-dimensional heat transfer characteristics in a turbine blade.
An experimental setup was installed with a turbine cascade of five-blade channels.
Blade heat transfer measurements were performed for the middle channel under uniform heat flux boundary conditions.
Heat was supplied to the blades using twenty-nine electric heating strips cemented vertically on the outer surface of the blades.
Distributions of heat transfer coefficient were obtained at three levels through blade height by measuring surface temperature distribution using thermocouples.
To understand heat transfer characteristics, surface static pressure distributions on blade surface were also measured.
Numerical investigation was performed as well to extend the investigation to locations other than those measured experimentally.
Three-dimensional nonisothermal, turbulent flow was obtained by solving Reynolds averaged Navier-Stokes equations and energy equation.
The shear stress transport k-ω model was employed to represent turbulent flow.
It was found through this study that secondary flow generated by flow deflection increases heat transfer coefficient on the blade suction surface.
Separation lines with high heat transfer coefficients were predicted numerically with good agreement with the experimental measurements.
American Psychological Association (APA)
al-Batsh, Hashim M.& Nada, Samih A.& Abdo, Samia Nasreldin& El-Tayesh, Abdelgalil A.. 2013. Effect of Secondary Flows on Heat Transfer of a Gas Turbine Blade. International Journal of Rotating Machinery،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-498963
Modern Language Association (MLA)
al-Batsh, Hashim M.…[et al.]. Effect of Secondary Flows on Heat Transfer of a Gas Turbine Blade. International Journal of Rotating Machinery No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-498963
American Medical Association (AMA)
al-Batsh, Hashim M.& Nada, Samih A.& Abdo, Samia Nasreldin& El-Tayesh, Abdelgalil A.. Effect of Secondary Flows on Heat Transfer of a Gas Turbine Blade. International Journal of Rotating Machinery. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-498963
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498963