Abstract
Downburst wind loads pose great threats to many structural systems and industrial aviation, especially large structures. Previous investigations on downburst wind events focused on steady state simulation and were then developed for unsteady state simulation. The total age of downburst events is rarely investigated, but the importance of the event period arises during any study of large extended structural systems such as transmission line systems, where they can experience most of the downburst period. In addition, the accumulated temporal profiles of downburst wind speeds are needed for dynamic analysis and for developing the intensity decay function that can simulate the temporal profile of the event. In this paper a developed parametric study is coupled with numerical CFD simulations to investigate several observed downburst events. The different parameters of the downburst events such as the total age, intensity period, decay period, downburst diameter, initial location, path direction and parent storm translation speed have been estimated by relating the recorded data to the coupled parametric-CFD study. Then an accurate period for depicting the actual age of downburst events is presented and a relationship between downburst sizes and their ages is developed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of Wind Engineering & Industrial Aerodynamics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.