Assessment of Turbulence Models on Bridge-Pier Scour Using Flow-3D - World Journal of Engineering and Technology

WJET > Vol.7 No.2, May 2019

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

HTML XML

Download as PDF (Size: 1599KB) PP. 241-255

DOI: 10.4236/wjet.2019.72016 1,990 Downloads 5,194 Views Citations

Author(s)

Chandara Man, Genguang Zhang^*, Vouchleang Hong, Shuang Zhou, Yulin Feng

Affiliation(s)

College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, China.

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.

KEYWORDS

Flow-3D, Bridge-Piers Scour, Computational Fluid Dynamics (CFD), Turbulence Model Large Eddy Simulation Model (LES), Renormalized Group Model (RNG)

Share and Cite:

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.

Journals Menu

Follow SCIRP

	+1 323-425-8868
	customer@scirp.org
	+86 18163351462(WhatsApp)
	1655362766

	Paper Publishing WeChat

Journals Menu

Home

About SCIRP

Service

Policies