Buy article PDF
Instant access to
the full article PDF
for the next 48 hrs
US$ 35
|
Wind and Structures Volume 13, Number 6, November 2010 , pages 487-498 DOI: https://doi.org/10.12989/was.2010.13.6.487 |
|
|
|
Numerical calculation of the wind action on buildings using Eurocode 1 atmospheric boundary layer velocity profiles |
||
M.F.P. Lopes, J.M. Paixao Conde, M. Gloria Gomes and J.G. Ferreira
|
||
| Abstract | ||
| When designing structures to the wind action, the variation of the mean wind velocity and turbulence parameters with the height above the ground must be taken into account. This paper presents the numerical simulation results of atmospheric boundary layer (ABL) airflows, in a numerical domain with no obstacles and with a cubic building. The results of the flow characterization, obtained with the FLUENT CFD code were performed using the k turbulence model with the MMK modification. The mean velocity and turbulence intensity profiles in the inflow boundary were defined in accordance with the Eurocode 1.4, for different conditions of aerodynamic roughness. The maintenance of the velocity and turbulence characteristics along the domain were evaluated in an empty domain for uniform incident flow and the ABL Eurocode velocity profiles. The pressure coefficients on a cubic building were calculated using these inflow conditions. | ||
| Key Words | ||
| atmospheric boundary layer; wind action on buildings; CFD simulations; Eurocode 1.4. | ||
| Address | ||
| M.F.P. Lopes and J.M. Paixao Conde: IDMEC, Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal M. Gloria Gomes and J.G. Ferreira: DECivil/ICIST, Instituto Superior Tecnico, Universidade Tecnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal | ||