TY - GEN
T1 - Flow and heat transfer at the hub endwall of inlet vane passages - Experiments and simulations
AU - Roy, R. P.
AU - Squires, Kyle
AU - Gerendas, M.
AU - Song, S.
AU - Howe, W. J.
AU - Ansari, A.
N1 - Funding Information:
This research was supported by AlliedSignal Engines, Phoenix, Arizona and by the National Science Foundation, Thermal Transport and Thermal Processing Program, Division of Chemical and Thermal Systems, under grant no. CTS-9904172. Their support is gratefully acknowledged.
Publisher Copyright:
Copyright © 2000 by ASME.
PY - 2000
Y1 - 2000
N2 - The heat transfer distribution on the hub endwall of a model turbine vane passage was studied experimentally and by numerical simulation. The experiments were carried out in a low speed wind tunnel featuring a linear cascade of scaled-up inlet vanes. Measurements were made both without and with secondary air injection through slots located upstream of the vane leading edge using the transient liquid crystal technique. Results are presented for Recax, in = 6.76 × 104 and blowing ratios of zero (no secondary air injection) and 1.3. Simulations were performed on unstructured grids using Fluent. A near-wall description of the flow field was employed. Turbulent stresses in the momentum equations were closed using the Spalart-Almaras model, and the turbulent heat flux in the thermal energy equation was closed using a constant turbulent Prandfl number. The agreement between the measurements and the simulations is generally good.
AB - The heat transfer distribution on the hub endwall of a model turbine vane passage was studied experimentally and by numerical simulation. The experiments were carried out in a low speed wind tunnel featuring a linear cascade of scaled-up inlet vanes. Measurements were made both without and with secondary air injection through slots located upstream of the vane leading edge using the transient liquid crystal technique. Results are presented for Recax, in = 6.76 × 104 and blowing ratios of zero (no secondary air injection) and 1.3. Simulations were performed on unstructured grids using Fluent. A near-wall description of the flow field was employed. Turbulent stresses in the momentum equations were closed using the Spalart-Almaras model, and the turbulent heat flux in the thermal energy equation was closed using a constant turbulent Prandfl number. The agreement between the measurements and the simulations is generally good.
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U2 - 10.1115/2000-GT-0198
DO - 10.1115/2000-GT-0198
M3 - Conference contribution
AN - SCOPUS:84955153906
T3 - Proceedings of the ASME Turbo Expo
BT - Heat Transfer; Electric Power; Industrial and Cogeneration
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME Turbo Expo 2000: Power for Land, Sea, and Air, GT 2000
Y2 - 8 May 2000 through 11 May 2000
ER -