Simulating Hydraulic Characteristics and Enhance Design of My Lam Spillway-Stilling Basin, Vietnam
Le Thi Thu Hien
Le Thi Thu Hien, Thuyloi University, Hanoi, 100000 Ha noi, Vietnam.
Manuscript received on 03 July 2019 | Revised Manuscript received on 08 July 2019 | Manuscript published on 30 August 2019 | PP: 953-957 | Volume-8 Issue-10, August 2019 | Retrieval Number: J91110881019/2019©BEIESP | DOI: 10.35940/ijitee.J9111.0881019
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The purpose of this paper is to use a hydrodynamic 3D model to simulate steady flow over spillway-stilling basin of Mylam, Vietnam. A robust and effective tool of Flow 3D software in simulating many complicated phenomena of fluid flow is selected. This model uses Volume of Fluid Method to solve Navier-Stokes equations. The computed water surface elevation at gauges along centerline of weir and chute channel are compared with experimental ones in four working conditions. The reasonable agreement between them are observed. Besides, the detail hydraulic features in each segment is indicated such as: oblique wave on spillway chute; separated flow at curve and enlarge segment and the specific hydraulic energy dissipation in stilling basin of design is carried out. The insufficient construction of dissipated obstacles in stilling basin design is shown. Therefore, a proper design is proposed.
Keywords: Spillway, stilling basin, hydraulic characteristics, Flow 3D.
Scope of the Article: Hydraulic Engineering