Author(s): Quang Binh Nguyen, Ngoc Duong Vo, Philippe Gourbesville
Linked Author(s): Quang Binh Nguyen
Keywords: Flow near groyne, dynamic behavior of velocity, hydrodynamic, modeling, TELEMAC 3D
Abstract:
The research of Mohamed F.M Yossef and Huid J. de Vriend published in the Journal of Hydraulic Engineering (2011) presented the dynamics of the flow near groynes in detail. By physical experiment, in a fixed bed flume, the authors found out the differences in nature of turbulence between submerged and emerged groyne stage. They provided insight into the flow pattern in vicinity of groynes, the shape and extent of the mixing layer at different flow stages, and the dynamic behavior of velocity along the mixing layer of the main channel and the groyne fields. With the aim of modeling, with a numerical tool, the observed results, this paper presents the work developed on the TELEMAC 3D modeling system and the hypothesis used by Yossef and De Vriend (2010). The simulation is very impressive. It could represent almost all characteristics existing in the experiment. The performance of the simulation demonstrates the strong capacity of computational modeling systems like TELEMAC 3D in representing the flow stage in different cases. The result also confirms the preeminence of computational program about flexibility, simulated time and result expression in comparison with experiment. The paper is expected to provide an insight about using computational model for hydraulic research and to be useful for studying the dynamics of flow near groynes by hydrodynamics simulation. (2638, 61, 334)
Year: 2017