LATTICE BOLTZMANN SIMULATION TO CHARACTERIZE ROUGHNESS EFFECTS OF OSCILLATORY BOUNDARY LAYER FLOW OVER A ROUGH BED
No. 32 (2010), Sediment Transport and Morphology
No. 32 (2010)

LATTICE BOLTZMANN SIMULATION TO CHARACTERIZE ROUGHNESS EFFECTS OF OSCILLATORY BOUNDARY LAYER FLOW OVER A ROUGH BED

Sediment Transport and Morphology
https://doi.org/10.9753/icce.v32.sediment.3
Published 2011-01-30
Lei Ding
Tianjin University
Qing-He Zhang
Tianjin University
Proceedings of the 32nd International Conference
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Keywords

lattice Boltzmann method
oscillatory boundary layer
equivalent roughness height
friction factor

How to Cite

Ding, L., & Zhang, Q.-H. (2011). LATTICE BOLTZMANN SIMULATION TO CHARACTERIZE ROUGHNESS EFFECTS OF OSCILLATORY BOUNDARY LAYER FLOW OVER A ROUGH BED. Coastal Engineering Proceedings, 1(32), sediment.3. https://doi.org/10.9753/icce.v32.sediment.3
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Abstract

The 3-D lattice Boltzmann method was applied to characterize roughness effects of oscillatory boundary layer flow over a rough bed. The direct numerical simulation was carried out and the flow resistance of the flat and fixed bed was investigated. The position of the theoretical bed, equivalent roughness height and the behavior of friction factor at small values of relative roughness were obtained using the log-fit method.
https://doi.org/10.9753/icce.v32.sediment.3
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