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TECHNICAL PAPERS

Comparisons of High-Reynolds-Number EVM and DSM Models in the Prediction of Heat and Fluid Flow of Turbine Blade Cooling Passages

[+] Author and Article Information
Yoji Okita

Aero-Engine and Space Operations, Ishikawajima-Harima Heavy Industries (IHI), Mizuho-Machi, Tokyo, 190-1297, Japanemail: youji_ookita@ihi.co.jp, web page: http://www.ihi.co.jp

Hector Iacovides

Department of Mechanical, Aerospace and Manufacturing Engineering, University of Manchester Institute of Science and Technology (UMIST), Manchester, M60 1QD, U.K.email: h.iacovides@umist.ac.uk, web page: http://cfd.me.umist.ac.uk/tmcfd

J. Turbomach 125(3), 585-597 (Aug 27, 2003) (13 pages) doi:10.1115/1.1580158 History: Received December 01, 2002; Revised March 05, 2003; Online August 27, 2003
Copyright © 2003 by ASME
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References

Figures

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Measured contours of Nusselt number at Re=50,000, Baughn and Yan 21 (left: rough surface, right: smooth surface)
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Predicted contours of Nusselt number at Re=50,000 with EVM (left: rough surface, right: smooth surface)
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Predicted contours of Nusselt number at Re=50,000 with DSM (left: rough surface, right: smooth surface)
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Flow through sharp U-bends
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Comparison of Nusselt number profile on the inner wall for the two grids
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Axial variation of side-averaged Nusselt number of the U-bend at Re=95,000 (top: inner wall, bottom: outer wall)
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Measured Nusselt number contours for the U-bend at Re=95,000, lacovides et al. 22
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Calculated Nusselt number contours for the U-bend at Re=95,000
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Comparison of turbulent intensity profiles at Z/D=3 (top: 2Y/D=0.8, bottom: 2Y/D=0.4)
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Effects of wall treatment in DSM on the side-averaged Nusselt number (top: inner wall, bottom: outer wall)
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Calculated Nusselt number contours for the U-bend at Re=95,000, with DSM-WF2 (upper: inner wall, lower: outer wall)
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Measured Nusselt number contours for the rotating U-bend at Re=30,000 and Pr=5.9 24
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Calculated Nusselt number contours for the rotating U-bend at Re=30,000 and Pr=5.9
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Comparison of Nusselt number contours for the ribbed U-bend at Re=95,000 22
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MUSCL discretization of convective variables at the cell interface
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Predicted flow field across the duct, half-way between the in-line ribs, at Re=50,000 (top: EVM, bottom: DSM)
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Local Nusselt number comparisons along the center line of the ribbed and smooth walls, at Re=50,000
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Comparison of Nusselt number profile on the ribbed wall for the two grids
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Comparisons of the side-averaged Nusselt number development at Re=25,000, Ro=0.24, and Ra=1.6*108 ((a) leading face, (b) trailing face, (c) side face)
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Predicted mean flow development at Re=25,000, Ro=0.24, and Ra=1.6*108 (upper: Z/D=4 middle: Z/D=8 lower: Z/D=12)
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Comparison of Nusselt number development along the leading face for the two grids
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Orthogonally rotating duct

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