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Heat transfer study in rotating cascade using IR thermography and CFD analyses
Novak, Lovrenc (Author), Mori, Mitja (Author), Sekavčnik, Mihael (Author)

URLURL - Presentation file, Visit http://dx.doi.org/10.1007/s00231-007-0269-0 New window

Abstract
This paper presents an experimental and CFD numerical study of convective heattransfer in a rotating cascade. Infrared thermography was used to measure surface temperature distribution on a rotating hollow blade, heated internallyby secondary air. A CFD numerical model was made according to the actual test rig geometry and operating conditions. Tests were carried out in an iposonic flow regime at relatively low fluid temperatures, with the rotational and Reynolds numbers varied and hot-to-cool air mass flow ratio kept constant. Experimental and numerical results for the blade pressure side are compared in terms of surface temperature 2D distribution and Nusselt number one-dimensional distribution along the blade midspan, providing a reasonable agreement.

Language:English
Keywords:prenos toplote, konvekcija, termografija infrardeča, numerične metode, Nusseltovo število, heat transfer, IR thermography, CFD numerical approach, Nusselt number
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2008
Number of pages:str. 559-567
Numbering:Vol. 44, no. 5
UDC:544.344.016.2:543.572.3
ISSN on article:0947-7411
COBISS.SI-ID:10122011 Link is opened in a new window
Views:658
Downloads:158
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Record is a part of a journal

Title:Heat and mass transfer
Shortened title:Heat mass transf.
Publisher:Springer, Springer-Verl. New York
ISSN:0947-7411
COBISS.SI-ID:2053915 New window

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