Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Application of a discrete vortex method for the analysis of suspension bridge deck sections

Taylor, Ian and Vezza, M. (2001) Application of a discrete vortex method for the analysis of suspension bridge deck sections. Wind and Structures, 4 (4). pp. 333-352. ISSN 1226-6116

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

two dimensional discrete vortex method (DIVEX) has been developed 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 predictions for the static section demonstrate that the method captures thecharacter of the flow field at different angles of incidence. In addition,flutter derivatives are obtained from simulations of the flow field aroundthe section undergoing vertical and torsional oscillatory motion. The subsequent predictions of the critical flutter velocity compare well with thosefrom both experiment and other computations. A brief study of the effect of flow control vanes on the aeroelastic stability of the bridge is also presented and the results from DIVEX are shown to be in accordance with previous analytical and experimental studies. In conclusion, the results indicatethat DIVEX is a very useful design tool in the field of wind engineering.

Item type: Article
ID code: 5703
Keywords: vortex method, numerical modelling, bridge aerodynamics, flutter derivatives, flow control, Mechanical engineering and machinery, Bridge engineering, Building and Construction, Modelling and Simulation, Civil and Structural Engineering
Subjects: Technology > Mechanical engineering and machinery
Technology > Bridge engineering
Department: Faculty of Engineering > Mechanical and Aerospace Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 27 Mar 2008
    Last modified: 12 Jun 2014 13:56
    URI: http://strathprints.strath.ac.uk/id/eprint/5703

    Actions (login required)

    View Item