Assessing the Capability of Computational Fluid Dynamics Models in Replicating Wind Tunnel Test Results for the Rose Fitzgerald Kennedy Bridge

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Title: Assessing the Capability of Computational Fluid Dynamics Models in Replicating Wind Tunnel Test Results for the Rose Fitzgerald Kennedy Bridge
Authors: Zhang, YuxiangCardiff, PhilipCahill, FergalKeenahan, Jennifer
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Date: 19-Dec-2021
Online since: 2022-09-29T11:52:16Z
Abstract: Despite its wide acceptance in various industries, CFD is considered a secondary option to wind tunnel tests in bridge engineering due to a lack of confidence. To increase confidence and to advance the quality of simulations in bridge aerodynamic studies, this study performed three-dimensional RANS simulations and DESs to assess the bridge deck aerodynamics of the Rose Fitzgerald Kennedy Bridge and demonstrated detailed procedures of the verification and validation of the applied CFD model. The CFD simulations were developed in OpenFOAM, the results of which are compared to prior wind tunnel test results, where general agreements were achieved though differences were also found and analyzed. The CFD model was also applied to study the effect of fascia beams and handrails on the bridge deck aerodynamics, which were neglected in most research to-date. These secondary structures were found to increase drag coefficients and reduce lift and moment coefficients by up to 32%, 94.3%, and 52.2%, respectively, which emphasized the necessity of including these structures in evaluations of the aerodynamic performance of bridges in service. Details of the verification and validation in this study illustrate that CFD simulations can determine close results compared to wind tunnel tests.
Funding Details: University College Dublin
Funding Details: Chinese Scholarship Council
Type of material: Journal Article
Publisher: MDPI
Journal: CivilEng
Volume: 2
Issue: 4
Start page: 1065
End page: 1090
Copyright (published version): 2021 the Authors
Keywords: Verification and validationCFDWind tunnel testAerodynamic coefficientsFascia beamsHandrails
DOI: 10.3390/civileng2040057
Language: en
Status of Item: Peer reviewed
This item is made available under a Creative Commons License:
Appears in Collections:Mechanical & Materials Engineering Research Collection
Civil Engineering Research Collection

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