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TECHNICAL PAPERS: Power

Large Eddy Simulation of the Anti-Erosion Characteristics of the Ribbed-Bend in Gas-Solid Flows

[+] Author and Article Information
J. R. Fan, K. Luo, X. Y. Zhang, K. C. Cen

Institute for Thermal Power Engineering and CE&EE, Zhejiang University, Hangzhou 310027, P.R. China

J. Eng. Gas Turbines Power 126(3), 672-679 (Aug 11, 2004) (8 pages) doi:10.1115/1.1760523 History: Received August 12, 2001; Revised February 08, 2004; Online August 11, 2004
Copyright © 2004 by ASME
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References

Figures

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(a) The computational domain and rib arrangement of case C. (b) The basic grid system in y=0.01 m plane of case A.
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The velocity vector of the gas flow at 45° cross section in cases A, B, C, and D. (a) Case A. (b) Case B. (c) Case C. (d) Case D.
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The velocity vector of flow field at the bend part of y=0.01 m plane for in cases A, B, C, and D. (a) Case A. (b) Case B. (c) Case C. (d) Case D.
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All the particle trajectories in the bend parts of the four bends, respectively. (a) Case A. (b) Case B. (c) Case C. (d) Case D.
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The typical single particle trajectory in the different cases. (a) Case A. (b) Case B. (c) Case C. (d) Case D.
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Comparisons of the experimental erosion rate (Yao et al. 6) with that of the cases of A, B, C, and D at the same conditions
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Comparisons of the erosion rates of the ribs, the bend walls and the sidewalls for the cases of B, C, and D. (a) Case B. (b) Case C. (c) Case D.
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Comparisons of the normalized impact velocity distribution of particle-wall impact (computational unit time) between four cases. (a) 20–30 m/s; (b) 30–40 m/s; (c) >40 m/s.
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Comparison of particle-wall impact angle distribution between differernt cases

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