Sand erosion is a phenomenon where solid particles impinging to a wall cause serious mechanical damages to the wall surface. This phenomenon is a typical gas-particle two-phase turbulent flow and a multi-physics problem where the flow field, particle trajectory and wall deformation interact with among others. On the other hand, the sand erosion is a serious problem to install pneumatic conveying systems for handling abrasive materials. Incidentally, the bend erosion is typical target of sand erosion experiments and is useful for verification of numerical simulations. Although, the secondary flow which occurs in such a flow field including streamline curvature cannot be reproduced by the standard k-ε model. To predict this flow field, a more universal model which can estimate anisotropic Reynolds stress is required. In the present study, we simulate sand erosion of 90 degree bend with a square cross-section. We use some linear/nonlinear turbulence models to predict the secondary flow of the bend. Besides, the performance of each model to predict clear/eroded bend flow field is studied.
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ASME/JSME 2007 5th Joint Fluids Engineering Conference
July 30–August 2, 2007
San Diego, California, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4288-6
PROCEEDINGS PAPER
Numerical Simulation of Sand Erosion Phenomena in Square-Section 90 Degree Bend With Linear/Nonlinear RANS Turbulence Models
Masaya Suzuki,
Masaya Suzuki
Tokyo University of Science, Tokyo, Japan
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Kazuaki Inaba,
Kazuaki Inaba
Tokyo University of Science, Tokyo, Japan
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Makoto Yamamoto
Makoto Yamamoto
Tokyo University of Science, Tokyo, Japan
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Masaya Suzuki
Tokyo University of Science, Tokyo, Japan
Kazuaki Inaba
Tokyo University of Science, Tokyo, Japan
Makoto Yamamoto
Tokyo University of Science, Tokyo, Japan
Paper No:
FEDSM2007-37030, pp. 797-805; 9 pages
Published Online:
March 30, 2009
Citation
Suzuki, M, Inaba, K, & Yamamoto, M. "Numerical Simulation of Sand Erosion Phenomena in Square-Section 90 Degree Bend With Linear/Nonlinear RANS Turbulence Models." Proceedings of the ASME/JSME 2007 5th Joint Fluids Engineering Conference. Volume 1: Symposia, Parts A and B. San Diego, California, USA. July 30–August 2, 2007. pp. 797-805. ASME. https://doi.org/10.1115/FEDSM2007-37030
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