TY - GEN
T1 - Measurements of a trailing edge slot film cooling geometry designed for reduced coolant flowrate and high surface effectiveness
AU - Ling, Julia
AU - Elkins, Christopher J.
AU - Benson, Michael J.
AU - Yapa, Sayuri D.
AU - Eaton, John K.
PY - 2013
Y1 - 2013
N2 - A trailing edge slot film cooling configuration designed for enhanced surface effectiveness at a decreased coolant flowrate is proposed. Magnetic resonance imaging (MRI) techniques were used to obtain measurements of the mean 3D velocity and concentration fields. These measurements are compared to previously reported results on two other trailing edge configurations. The surface effectiveness of the proposed slot film cooling configuration is higher than that of the baseline configuration, even at a 25% lower coolant flowrate. The mean fields are used to calculate an isotropic, spatially-varying turbulent diffusivity for each of these trailing edge configurations. These diffusivities are compared to offer insight into the effect of land shape on turbulence properties.
AB - A trailing edge slot film cooling configuration designed for enhanced surface effectiveness at a decreased coolant flowrate is proposed. Magnetic resonance imaging (MRI) techniques were used to obtain measurements of the mean 3D velocity and concentration fields. These measurements are compared to previously reported results on two other trailing edge configurations. The surface effectiveness of the proposed slot film cooling configuration is higher than that of the baseline configuration, even at a 25% lower coolant flowrate. The mean fields are used to calculate an isotropic, spatially-varying turbulent diffusivity for each of these trailing edge configurations. These diffusivities are compared to offer insight into the effect of land shape on turbulence properties.
UR - http://www.scopus.com/inward/record.url?scp=84890188341&partnerID=8YFLogxK
U2 - 10.1115/GT2013-94292
DO - 10.1115/GT2013-94292
M3 - Conference contribution
AN - SCOPUS:84890188341
SN - 9780791855157
T3 - Proceedings of the ASME Turbo Expo
BT - ASME Turbo Expo 2013
T2 - ASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013
Y2 - 3 June 2013 through 7 June 2013
ER -