Experimental and Large Eddy Simulation Study for Visualizing Complex Flow Phenomena of Gas Turbine Internal Blade Cooling Channel With No Bend

Nourin, Farah Nazifa; Amano, Ryoichi S.

doi:10.1115/1.4051900

Experimental and Large Eddy Simulation Study for Visualizing Complex Flow Phenomena of Gas Turbine Internal Blade Cooling Channel With No Bend

Journal Article · Wed Aug 11 04:00:00 EDT 2021 · Journal of Energy Resources Technology

DOI:https://doi.org/10.1115/1.4051900· OSTI ID:1980665

Nourin, Farah Nazifa ^[1]; Amano, Ryoichi S. ^[2]

Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 115 E. Reindl Way, Glendale, WI 53212; OSTI
Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 115 E. Reindl Way, Glendale, WI 53212

Abstract

In this study, the internal cooling channel was investigated without any bend. Smooth surfaces and dimpled surfaces were investigated using the different combinations of connecting circular and rectangular holes. The computations were performed using the large eddy simulation (LES) model for Reynolds (Re) numbers from 10,000 to 50,000. A total of six different connecting holes were investigated with a smooth and dimpled surface. A partial spherical dimple with two circular holes showed the highest heat transfer, but it has a higher pressure loss penalty. Even though the leaf dimpled surface with the rectangluar holes indicated a little low heat transfer, it represents the highest efficiency at higher Reynolds numbers because of the low-pressure drops.

Research Organization:: Univ. of Wisconsin, Madison, WI (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

DOE Contract Number:: EE0000545

OSTI ID:: 1980665

Journal Information:: Journal of Energy Resources Technology, Journal Name: Journal of Energy Resources Technology Journal Issue: 6 Vol. 144; ISSN 0195-0738

Publisher:: ASME

Country of Publication:: United States

Language:: English

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