Flow simulation over a triangular labyrinth side weir in a rectangular channel Online publication date: Thu, 31-Jan-2019
by Ali Naghi Ziaei; Neda S.R. Nikou; Ali Beyhaghi; Fatemeh Attarzadeh; Saeed Reza Khodashenas
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 19, No. 1, 2019
Abstract: Labyrinth side weirs are used as regulator outlets in river diversion structures , water conveyance systems and sewer networks . Herein , the flow around triangular labyrinth side weir with three different included angles (θ = 45 , 60 and 90°) were numerically studied . The 3D RANS equations were solved and VOF method was implemented for free-surface tracking . Different boundary conditions and geometric dimensions were examined and their results were compared with experimental data. Different two-equation turbulence models were implemented. The water depth profiles and overflow discharge were compared with experimental results. The root mean square error of simulated water depth profile using standard k-ε model was less than 1 mm. The diverted water discharge was computed with relative error less than 0.7%. The discharge of the labyrinth side weir was 1.7, 1.33 and 1.25 times the discharge of an equivalent normal side weir for θ = 45 , 60 and 90°, respectively.
Online publication date: Thu, 31-Jan-2019
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the Progress in Computational Fluid Dynamics, An International Journal (PCFD):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email email@example.com