Share This Article:

Assessment of Turbulence Models on Bridge-Pier Scour Using Flow-3D

Full-Text HTML XML Download Download as PDF (Size:1599KB) PP. 241-255
DOI: 10.4236/wjet.2019.72016    825 Downloads   1,512 Views

ABSTRACT

The main purpose of this paper is to analyze the influence of different turbulence flow models on scouring pit of bridge-pier. Flow-3D software is applied in line with the purpose. The key motivation for this study is to contribute to the Flow-3D software by means of some modification and adjustment in the sediment scour model and shallow water model. An assessment of turbulence model adopted with the parameters of the Melville experiment to estimate the maximum scour-depth was performed. In the simulation results, the alternate eddy formation and shedding were repeated while the Karman vortex street formed behind the pier for the large eddy simulation LES turbulence model is more realistic in the flow phenomenon. The results of the scour development of large eddy simulation (LES) turbulence model were found to be more satisfied than the Renormalized group (RNG) turbulence model and close to the prior experiment results. The simulated scour results were significantly different with the observed data collected from previous literature in the reason of some unsuitability of meshing method in Flow-3D software.

Cite this paper

Man, C. , Zhang, G. , Hong, V. , Zhou, S. and Feng, Y. (2019) Assessment of Turbulence Models on Bridge-Pier Scour Using Flow-3D. World Journal of Engineering and Technology, 7, 241-255. doi: 10.4236/wjet.2019.72016.

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.