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Số người truy cập: 56,325,320

 Flow near groynes: Experimental or Computational approaches
Tác giả hoặc Nhóm tác giả: Quang Binh NGUYEN, Ngoc Duong VO, Philipe GOURBESVILLE
Nơi đăng: Proceedings of the 37th IAHR World Congress August 13 – 18, 2017, Kuala Lumpur, Malaysia; Số: ISSN 1562-6865 (Online) - ISSN 1063-7710 (Print);Từ->đến trang: 1594-1603;Năm: 2017
Lĩnh vực: Kỹ thuật; Loại: Bài báo khoa học; Thể loại: Quốc tế
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.

[ 01-04-1175.pdf ]
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