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


IASS Symposium 2016

SESSION: General: Towers & Temporary Structures; Preservation

Numerical simulation of drag coefficient for guyed mast with and without ancillaries

< 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: 8
  • Title: Numerical simulation of drag coefficient for guyed mast with and without ancillaries
  • Author(s): Renle Ma, Yuan Sun, Xu Qiu
  • Keywords: guyed mast, ancillaries, drag coefficient, computational fluid dynamics
Abstract
Guyed masts are exceptionally tall and slender structures widely used for wireless broadcasting and communication industries. Wind load is the main load affecting the stability of the structure. Numerical method using Computational Fluid Dynamics (CFD) to determine drag coefficients is presented in this study. Two section models of guyed masts with and without ancillaries are developed. The three-dimensional steady Reynolds-averaged Navier-Stokes (RANS) equations are solved by employing the RNG turbulence model. Drag coefficients obtained by numerical simulations are compared with the wind tunnel test data and those predicted by the existing codes and standards. The numerical results are generally in good agreement with the experimental measurements. CFD is found to be a valuable tool to evaluate the drag coefficient of guyed mast as a supplement or even alternative to wind tunnel test with sufficient accuracy.

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