ALE-VMS methods for wind-resistant design of long-span bridges

For unsteady aerodynamics, the Arbitrary Lagrangian-Eulerian Variational Multi-Scale (ALE-VMS) formulation for incompressible flows has proven an accurate and powerful method. In this paper we present an overview of some of its applications to wind engineering of long-span bridges, including flutter...

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Bibliographic Details
Published inJournal of wind engineering and industrial aerodynamics Vol. 191; pp. 143 - 153
Main Authors Helgedagsrud, Tore A., Bazilevs, Yuri, Mathisen, Kjell M., Øiseth, Ole A.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2019
Subjects
Bridge aerodynamics
Buffeting
Computational fluid dynamics
Fluid-structure interaction
Flutter
Turbulence
VIV
Turbulence
VIV
Computational fluid dynamics
Bridge aerodynamics
Flutter
Fluid-structure interaction
Buffeting
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Summary:For unsteady aerodynamics, the Arbitrary Lagrangian-Eulerian Variational Multi-Scale (ALE-VMS) formulation for incompressible flows has proven an accurate and powerful method. In this paper we present an overview of some of its applications to wind engineering of long-span bridges, including flutter and buffeting analysis and vortex-induced vibrations. In general the numerical results compare well with the companion wind-tunnel experiments. Further, we use the method to address more special topics of bluff-body aerodynamic; the impact of inlet turbulence on the self-excited forces and the nonconforming span-wise coherence structures of turbulence and buffeting forces. The present work demonstrates the completeness and accuracy of ALE-VMS, and proves it to be a viable engineering tool for bridge aerodynamics.
ISSN:0167-6105
1872-8197
DOI:10.1016/j.jweia.2019.06.001