Results 71 to 80 of about 615 (185)

Characterization of thunderstorm downburst winds through CFD techniques

open access: yes, 2022
The characteristic wind field of a certain region is mostly governed by the climatology of its larger scale area. In the case of mid-latitude regions (e.g.
ZUZUL, JOSIP
core   +1 more source

Simulation of the Flow Field Characteristics of a Downburst [PDF]

open access: yes, 2007
Wind load on a structure is usually investigated in turbulent boundary layer flow simulated in a boundary layer wind tunnel. However, the strong wind that causes damages on structures is usually transient wind, for instance, downburst wind, whose statistics are different with the general atmospheric boundary layer.
S. Cao   +5 more
openaire   +1 more source

Observations of a frontal–trough merger over a wildfire, Queensland, Australia

open access: yesQuarterly Journal of the Royal Meteorological Society, Volume 151, Issue 771, July 2025 Part B.
Observations are presented of the meteorology of a frontal–trough merger in subtropical Australia which impacted a wildfire. An elevated nocturnal mixed layer above approx. 2500 m with increasing moisture with height was identified as the source of instability that resulted in the formation of elevated storms along a 300‐km frontal–trough boundary ...
Hamish McGowan   +3 more
wiley   +1 more source

Added Value of Environmental Variables for Satellite Precipitation Retrieval: A Temporal Coevolution Perspective and a Machine Learning Integration Assessment

open access: yesGeophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract Satellite precipitation retrieval is inherently an underdetermined inverse problem where additional physical constraints could substantially enhance accuracy. While previous studies have explored static (pixel‐based/spatial‐context‐based) environmental variables at discrete satellite observation times, their temporal dynamic information ...
Runze Li   +2 more
wiley   +1 more source

Idealised simulation of downburst winds

open access: yes, 2010
Convectively driven downburst winds pose a threat to structures and communities in many regions of Australia not subject to tropical cyclones. Extreme value analysis shows that for return periods of interest to engineering design these events produce ...
Mason, Matthew S.
core  

Three-Dimensional Numerical Simulation of Downburst Wind Occurrded in Wuhan

open access: yes, 2011
Downburst is a strong downdraft generated below a cumulonimbus cloud, which hits the ground rapidly and causes significant low-level wind shear. It is a strong destructive regional weather phenomenon, which is the main reason for the transmission towers.
Bin Wang   +4 more
core   +1 more source

Experimental Modelling of Downburst and Downburst line Outflows

open access: yes, 2020
The outflow velocity vector fields of simulated stationary thunderstorm downbursts and downburst lines were resolved in two plane orientations, vertical and horizontal, using a dense fluid release system and Particle Image Velocimetry. Single event releases were scaled to show agreement with past studies based on radial velocity magnitude and location ...
openaire   +1 more source

Wind load impact on tall building facades: damage observations during severe wind events and wind tunnel testing

open access: yesFrontiers in Built Environment
As global urbanization accelerates, the construction of tall buildings has surged, becoming a defining feature of modern cityscapes. Tall buildings, while contributing to economic growth and urban development, face substantial risks from extreme wind ...
Omar Metwally   +7 more
doaj   +1 more source

Analysis of the Dynamics and Microphysics of a Wet Downburst Case Using Dual-Polarization Radar Data [PDF]

open access: yes, 2019
A significant, wet downburst affected Norman, Oklahoma, on 14 June 2011. Surface winds in excess of 35 m/s (>80 mph) and hailstones in excess of 4 cm diameter occurred during the downburst.
Mahale, Vivek
core  

Downburst Flow Simulation and Evaluation of Downburst Wind Effects on Buildings

open access: yes, 2022
Downbursts are non-stationary, non-Gaussian, transient, localized high wind events that constitute considerable damage to structures. Five different downburst simulator designs were tested and assessed in a 1:15 small-scale replica of the Wall of Wind ...
Mejia, Alvaro Danilo
core  

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