THREE-DIMENSIONAL NUMERICAL MODEL FOR SIMULATING THE ACCUMULATION PROCESS OF IMMERSED TUBE TANK OF HMZ BRIDGE
Proceedings of the 32nd International Conference
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Keywords

3D model
finite volume
unstructured grid
HMZ Bridge
tube tank
sediment transport

How to Cite

Wang, Z., Geng, Y., & Lu, Y. (2011). THREE-DIMENSIONAL NUMERICAL MODEL FOR SIMULATING THE ACCUMULATION PROCESS OF IMMERSED TUBE TANK OF HMZ BRIDGE. Coastal Engineering Proceedings, 1(32), sediment.75. https://doi.org/10.9753/icce.v32.sediment.75

Abstract

In this paper, the development and implementation of a three-dimensional, numerical sediment transport model, which is based on staggered C-unstructured grids in the horizontal direction and Z-level grids in the vertical direction, is delineated. The three dimensional model is discretized by semi-implicit finite volume method, in that the free-surface and vertical diffusion are semi-implicit, thereby removing stability limitations associated with the surface gravity wave and vertical diffusion terms. The remaining terms in the momentum equations are discretized explicitly by integral method. The model is closed physically and mathematically using the Mellor and Yamada level-2.5 turbulent closure submodel. The numerical model is used for simulation accumulation process of immersed tube tank of HMZ (Hong Kong-Macau-Zhuhai) bridge. The model is calibrated and its performance extensively assessed against on-site experiment.
https://doi.org/10.9753/icce.v32.sediment.75
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