Aeroelastic stability analysis of a bridge deck with added vanes using a discrete vortex method

Ian Taylor, M. Vezza

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A two dimensional discrete vortex method (DIVEX) has been developed at the Department of Aerospace Engineering, University of Glasgow, to predict unsteady and incompressible flow fields around closed bodies. The basis of the method is the discretisation of the vorticity field, rather than the velocity field, into a series of vortex particles that are free to move in the flow field that the particles collectively induce. This paper gives a brief description of the numerical implementation of DIVEX and presents the results of calculations on a recent suspension bridge deck section. The results from both the static and flutter analysis of the main deck in isolation are in good agreement with experimental data. A brief study of the effect of flow control vanes on the aeroelastic stability of the bridge is also presented and the results confirm previous analytical and experimental studies. The aeroelastic study is carried out firstly using aerodynamic derivatives extracted from the DIVEX simulations. These results are then assessed further by presenting results from full time-dependent aeroelastic solutions for the original deck and one of the vane cases. In general, the results show good qualitative and quantitative agreement with results from experimental data and demonstrate that DIVEX is a useful design tool in the field of wind engineering.
LanguageEnglish
Pages277-290
Number of pages13
JournalWind and Structures
Volume5
Issue number2
Publication statusPublished - 2002

Fingerprint

Vortex Method
Bridge decks
Stability Analysis
Vortex flow
Flow fields
Flow Field
Aerospace engineering
Suspension bridges
Incompressible flow
Unsteady flow
Experimental Data
Vorticity
Flow control
Suspension Bridge
Engineering
Flutter
Aerodynamics
Unsteady Flow
Flow Control
Incompressible Flow

Keywords

  • computational wind engineering
  • discrete vortex method
  • bridge aerodynamics flow control
  • flutter
  • aerodynamic derivatives

Cite this

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title = "Aeroelastic stability analysis of a bridge deck with added vanes using a discrete vortex method",
abstract = "A two dimensional discrete vortex method (DIVEX) has been developed at the Department of Aerospace Engineering, University of Glasgow, to predict unsteady and incompressible flow fields around closed bodies. The basis of the method is the discretisation of the vorticity field, rather than the velocity field, into a series of vortex particles that are free to move in the flow field that the particles collectively induce. This paper gives a brief description of the numerical implementation of DIVEX and presents the results of calculations on a recent suspension bridge deck section. The results from both the static and flutter analysis of the main deck in isolation are in good agreement with experimental data. A brief study of the effect of flow control vanes on the aeroelastic stability of the bridge is also presented and the results confirm previous analytical and experimental studies. The aeroelastic study is carried out firstly using aerodynamic derivatives extracted from the DIVEX simulations. These results are then assessed further by presenting results from full time-dependent aeroelastic solutions for the original deck and one of the vane cases. In general, the results show good qualitative and quantitative agreement with results from experimental data and demonstrate that DIVEX is a useful design tool in the field of wind engineering.",
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Aeroelastic stability analysis of a bridge deck with added vanes using a discrete vortex method. / Taylor, Ian; Vezza, M.

In: Wind and Structures, Vol. 5, No. 2, 2002, p. 277-290.

Research output: Contribution to journalArticle

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AU - Vezza, M.

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