Numerical Ward-Type Tornado Simulator and its Application to Transient Wind-Induced Response of Long-Span Bridges
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Bibliografische Angaben
Autor(en): |
Yu Feng
(Chang’an University, Xi’an, Shaanxi, China)
Jianming Hao (Chang’an University, Xi’an, Shaanxi, China) Teng Wu (University at Buffalo, Buffalo, USA) |
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Medium: | Tagungsbeitrag | ||||
Sprache(n): | Englisch | ||||
Tagung: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
Veröffentlicht in: | IABSE Congress Nanjing 2022 | ||||
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Seite(n): | 283-290 | ||||
Anzahl der Seiten (im PDF): | 8 | ||||
DOI: | 10.2749/nanjing.2022.0283 | ||||
Abstrakt: |
In this study, the tornado-like wind field is simulated by the numerical Ward-type tornado simulator based on computational fluid dynamics (CFD) techniques. To minimize the discrepancy between the simulated and field-measured tornado winds, the optimization strategy is developed to achieve optimal parameters of the numerical Ward-type tornado simulator, namely the inflow angle and translation speed. To facilitate the optimization process, a multi-fidelity surrogate model is utilized to effectively integrate both low-fidelity and high-fidelity data for accurate and efficient simulations. The “best” parameters based on the multi-fidelity surrogate model is input to the numerical Ward- type tornado simulator (using LES technique). Finally, the transient wind field generated using the validated numerical Ward-type tornado simulator is employed as the dynamic inputs to the finite element (FE) model of a long-span bridge. |
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Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
Lizenz: | Die Urheberrechte (Copyright) für dieses Werk sind rechtlich geschützt. Es darf nicht ohne die Zustimmung des Autors/der Autorin oder Rechteinhabers/-in weiter benutzt werden. |