TY - GEN
T1 - Aero-thermal investigation of a rib-roughened trailing edge channel with crossing-jets - Part II
T2 - 2008 ASME Turbo Expo
AU - Armellini, Alessandro
AU - Coletti, Filippo
AU - Arts, Tony
AU - Scholtes, Christophe
PY - 2008/12/1
Y1 - 2008/12/1
N2 - The present contribution addresses the aero-thermal experimental and computational study of a trapezoidal cross-section model simulating a trailing edge cooling cavity with one rib-roughened wall and slots along two opposite walls. Highly resolved heat transfer distributions for the geometry with and without ribs are achieved using a steady state liquid crystals method in part 11 of this paper. The reference Reynolds number, defined at the entrance of the test section, is set at 67500for all the experiments. Comparisons are made with the flow field visualizations presented in part I of the paper. The results show the dramatic impact of the flow structures on the local and global heat transfer coefficients along the cavity walls. Of particular importance is the jet deflected by the rib-roughened wall and impinging on the opposite smooth wall. The experimental results are compared with the numerical predictions obtained using the finite volume, Reynolds-Averaged Navier-Stokes solver CEDRE.
AB - The present contribution addresses the aero-thermal experimental and computational study of a trapezoidal cross-section model simulating a trailing edge cooling cavity with one rib-roughened wall and slots along two opposite walls. Highly resolved heat transfer distributions for the geometry with and without ribs are achieved using a steady state liquid crystals method in part 11 of this paper. The reference Reynolds number, defined at the entrance of the test section, is set at 67500for all the experiments. Comparisons are made with the flow field visualizations presented in part I of the paper. The results show the dramatic impact of the flow structures on the local and global heat transfer coefficients along the cavity walls. Of particular importance is the jet deflected by the rib-roughened wall and impinging on the opposite smooth wall. The experimental results are compared with the numerical predictions obtained using the finite volume, Reynolds-Averaged Navier-Stokes solver CEDRE.
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U2 - 10.1115/GT2008-50695
DO - 10.1115/GT2008-50695
M3 - Conference contribution
AN - SCOPUS:69949129872
SN - 9780791843130
T3 - Proceedings of the ASME Turbo Expo
SP - 663
EP - 673
BT - 2008 Proceedings of the ASME Turbo Expo
Y2 - 9 June 2008 through 13 June 2008
ER -