Numerical Investigation of Flow Patterns Around Single and Twin Bridge Piers Using Turbulence Models in ANSYS Fluent

Numerical Investigation of Flow Patterns Around Single and Twin Bridge Piers Using Turbulence Models in ANSYS Fluent | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 5 January 2026 V1 Latest version Share on Numerical Investigation of Flow Patterns Around Single and Twin Bridge Piers Using Turbulence Models in ANSYS Fluent Authors : Sujoy Dey 0009-0008-5281-4467 [email protected] , Afnan Sami Arian , Kazi Ashfaque Hossain , Arjun Deb Ricky , and Saptaporna Dey Authors Info & Affiliations https://doi.org/10.22541/au.176764753.30730086/v1 147 views 101 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract The flow pattern around a bridge pier is critical as it contributes directly to local scouring. Local scour around bridge piers is one of the primary causes of failure of bridges, as reported by various studies. ANSYS Fluent was utilized in this research to model and predict the three-dimensional flow field around five various types of piers placed on a rigid and flat bed. Both the twin-pier and single-pier configurations were examined because twin piers involve more complicated flow regimes than the single-pier configuration. Three different configurations for twin piers were tested: tandem (one behind the other), side-by-side, and inclined with respect to the flow direction at 0.8 Froude Number (subcritical flow). To simulate the turbulent behavior of the flow, various turbulence models were utilized, including the RANS (Reynolds-Averaged Navier-Stokes) SST k-omega and DES (Detached Eddy Simulation) models. Three-dimensional analysis was utilized by the study to obtain qualitative and quantitative information regarding flow characteristics, which provides more accurate hydrodynamics near piers than two-dimensional analysis. Important flow features such as velocity streamlines, turbulence kinetic energy contours, pressure distribution, and wall shear stress along the channel wall were observed. The parameters were strongly influenced by the pier geometry and pier spacing. Wall shear stress also changed along the channel length because of the piers. Since the flow velocity around piers directly affects the scouring patterns in the local vicinity, such intense analyses for different pier geometries are highly beneficial from an engineering perspective in Bangladesh, especially as new bridges are continually being designed to enhance transport networks. Session: NG23B. Geophysical Fluid Dynamics II Poster Presentation Type: Poster Final Poster Number: NG23B-VR8874 Day/Time: Tuesday, 16 December 2025: 14:15 - 17:45, NOLA CC, Hall EFG (Poster Hall) Supplementary Material File (anssys_fluent.pdf) Download 18.46 MB Information & Authors Information Version history V1 Version 1 05 January 2026 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords ansys cfd bed shear stress bridge pier scour dynamic pressure turbulent kinetic energy Authors Affiliations Sujoy Dey 0009-0008-5281-4467 [email protected] View all articles by this author Afnan Sami Arian View all articles by this author Kazi Ashfaque Hossain View all articles by this author Arjun Deb Ricky View all articles by this author Saptaporna Dey View all articles by this author Metrics & Citations Metrics Article Usage 147 views 101 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Sujoy Dey, Afnan Sami Arian, Kazi Ashfaque Hossain, et al. Numerical Investigation of Flow Patterns Around Single and Twin Bridge Piers Using Turbulence Models in ANSYS Fluent. Authorea . 05 January 2026. DOI: https://doi.org/10.22541/au.176764753.30730086/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. 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