Thunderstorm downbursts can produce strong near-surface winds with severe consequences for low-rise structures. Due to the complex nature of the phenomenon and the lack of comprehensive full-scale recordings, downburst winds are nowadays largely reproduced as impinging jets in both experimental and computational studies in order to investigate its main physical characteristics. This is also the scope of the present study for which Large Eddy Simulations (LES) are performed to reproduce an isolated vertical downburst wind previously tested in the WindEEE Dome laboratory. The flow regions characterized by strongest wind gusts, commonly relevant for structural loading, are examined in terms of radial, vertical and temporal coordinate.
Characterization of experimentally produced isolated downburst winds by Large Eddy Simulations
Alessio Ricci;
2022-01-01
Abstract
Thunderstorm downbursts can produce strong near-surface winds with severe consequences for low-rise structures. Due to the complex nature of the phenomenon and the lack of comprehensive full-scale recordings, downburst winds are nowadays largely reproduced as impinging jets in both experimental and computational studies in order to investigate its main physical characteristics. This is also the scope of the present study for which Large Eddy Simulations (LES) are performed to reproduce an isolated vertical downburst wind previously tested in the WindEEE Dome laboratory. The flow regions characterized by strongest wind gusts, commonly relevant for structural loading, are examined in terms of radial, vertical and temporal coordinate.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
