ACINN Graduate Seminar - WS 2025/26

2026-01-07 at 12:00 (on-line and on-site) in the seminar room

A Numerical Database of Hurricane Boundary Layer Winds and Scaling Analysis

Marco Giometto

Columbia University

 

Hurricanes are the costliest natural hazard in the United States and account for a disproportionate share of damage, injuries, and loss of life. Despite decades of research, the quantitative understanding of hurricane near-surface winds remains insufficient for many wind-engineering applications, largely due to limitations in field observations and numerical simulations. To address this gap, we have recently developed a turbulence-resolving computational fluid dynamics framework that simulates a small but dynamically representative portion of the hurricane boundary layer (HBL) while accounting for the influence of larger-scale atmospheric motions. This approach resolves both mean flow and turbulent variability across scales ranging from kilometers to meters, providing new insight into the structure and dynamics of the HBL. In this presentation, I will provide an overview of the numerical framework and discuss scaling properties of HBL mean flow and turbulence relevant to wind-engineering applications, as well as a recently derived analytical solution for the HBL mean velocity profile.

 

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