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On the Characteristics of the Jet in Film Cooling Applications
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Management and Engineering. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, Faculty of Science & Engineering. Linköping University, Center for Medical Image Science and Visualization (CMIV).ORCID iD: 0000-0001-6634-797X
Linköping University, Department of Management and Engineering, Applied Thermodynamics and Fluid Mechanics. Linköping University, Faculty of Science & Engineering. Linköping University, Center for Medical Image Science and Visualization (CMIV).ORCID iD: 0000-0001-5526-2399
2016 (English)In: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON JETS, WAKES AND SEPARATED FLOWS (ICJWSF2015), SPRINGER INT PUBLISHING AG , 2016, Vol. 185, 449-455 p.Conference paper, Published paper (Refereed)
Abstract [en]

Numerical and experimental investigations are conducted to study the jet characteristics on the pressure side of a film-cooled turbine guide vane. CFD simulations, including both the steady RANS turbulence model, k - omega shear stress transport (SST), as well as the hybrid approach, Scale-Adaptive Simulation (SAS), are utilized to comprehend the turbulent flow structures and the vortex dynamics associated to the film cooling jet. For this purpose the commercial CFD code FLUENT has been utilized to study flow with injection of coolant through fan-shaped holes for two blowing ratios (0.6 and 1.2). Although, both turbulence models predict the vortical structures and jet dynamics similarly, the findings suggest that by resolving large energy containing vortices, the SAS model can improve the modeling of mixing properties and thereby approximation of the surface temperature.

Place, publisher, year, edition, pages
SPRINGER INT PUBLISHING AG , 2016. Vol. 185, 449-455 p.
Series
Springer Proceedings in Physics, ISSN 0930-8989
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:liu:diva-133021DOI: 10.1007/978-3-319-30602-5_56ISI: 000387431400056ISBN: 978-3-319-30602-5; 978-3-319-30600-1 (print)OAI: oai:DiVA.org:liu-133021DiVA: diva2:1054657
Conference
5th International Conference on Jets, Wakes and Separated Flows (ICJWSF)
Available from: 2016-12-08 Created: 2016-12-07 Last updated: 2016-12-08

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Nadali Najafabadi, HosseinFarhanieh, ArmanGårdhagen, RolandKarlsson, Matts
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Applied Thermodynamics and Fluid MechanicsFaculty of Science & EngineeringDepartment of Management and EngineeringCenter for Medical Image Science and Visualization (CMIV)
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Citation style
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