Log In    |    Join IASS    |    Online Journal    |    Proceedings    |    Directory    |    Events    |    News

Online IASS Proceedings

IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: General: Towers & Temporary Structures; Preservation

Numerical study for the wind load effects on four-cylinder structures

< Table of Contents for General: Towers & Temporary Structures; Preservation
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: General: Towers & Temporary Structures; Preservation
  • Pages: 10
  • Title: Numerical study for the wind load effects on four-cylinder structures
  • Author(s): Renle Ma, Xu Qiu, Yuan Sun
  • Keywords: four-cylinder structures, force characteristics, yaw angle, flow pattern, numerical simulation
Abstract
Successful numerical simulations can reveal important flow characteristics and information which are extremely difficult to obtain experimentally. Two- and three-dimensional (3-D) numerical simulations of flow past four-cylinder structures were conducted at named Reynolds number of 2.07x105. The yaw angles (beta) in the range of -30 deg. to 30 deg. were considered. The governing equations are the incompressible unsteady Reynolds-Averaged Navier-Stokes equations and RNG k-epsilon; turbulence equations, which are solved using a finite-volume method. The effects of the yaw angles on wake structures, pressure distribution and hydrodynamic forces of each cylinder were investigated. The drag coefficient of each cylinder agrees well with the independence principle. The total drag coefficient slightly increases with the increase of beta. The 2-D numerical results overestimated the drag coefficient of the four-cylinder structures.

Read the complete paper (pdf) (requires membership)
© IASS All rights reserved.
IASS · CEDEX - Laboratorio Central de Estructuras y Materiales · C/ Alfonso XII, 3 · 28014 Madrid, Spain     tel. 34 91 335-7409; fax: 335-7422
Site Design & Programming
by World Design Group, Inc.