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ISSN Печать: 1065-3090
ISSN Онлайн: 1940-4336
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A COMPARISON OF CFD AND LDA STUDIES OF INTERNAL VORTEX COOLING SYSTEMS FOR TURBINE BLADES
Краткое описание
The goal of this article is to reveal the effects of internal vortices on the flow characteristics inside the leading sections of a turbine blade. This leading section has been modeled with tangential inlet and outlet in a 180 °turn coolant chamber. This model generates a swirl flow that enhances heat transfer across the leading edge and hence reduces the external temperature of the blade. Three different geometries were studied under different Reynolds numbers based on the chamber inlet and outlet dimensions. This article presents a comparison of the flow results obtained from both Computational Fluid Dynamics (CFD) and Laser Doppler Anemometer LDA. The agreement between predictions and measurements has proven that both techniques can be used to analyze the flow structure inside the cooling chamber and provides a firm basis for future work.
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Shehata Ahmed S., Xiao Qing, Saqr Khalid M., Alexander Day, Wells turbine for wave energy conversion: a review, International Journal of Energy Research, 41, 1, 2017. Crossref
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Alhajeri Hamad M., Almutairi Abdulrahman, Alenezi Abdulrahman H., Gamil Abdelaziz A.A., Numerical investigation on heat transfer performance and flow characteristics in a roughened vortex chamber, Applied Thermal Engineering, 153, 2019. Crossref