Results 111 to 120 of about 16,122 (222)

A retrospective on the 2025 Atlantic hurricane season

open access: yesWeather, Volume 81, Issue 7, Page 224-232, July 2026.
The 2025 Atlantic hurricane season was intermittent, with extended quiet periods separated by three clusters of activity. The broad‐scale conditions were often unfavourable for cyclogenesis and common drivers of activity such as La Niña were weak, but well above‐average sea temperatures still supported intense storms.
Charles W. Powell
wiley   +1 more source

Contrasting the synoptic drivers of the UK heatwaves of 1976, 2003, 2018 and 2022

open access: yesWeather, Volume 81, Issue 7, Page 212-221, July 2026.
UK summer heatwaves are dictated by the polar jet stream position and sea surface temperature (SST) variability, affecting the Summer North Atlantic Oscillation (SNAO) index. The SNAO can determine and influence the Central England Precipitation (CEP) and Central England Temperature (CET).
Nedim Sladić   +4 more
wiley   +1 more source

Multiscale Modeling and Computation of 3D Incompressible Turbulent Flows [PDF]

open access: yes, 2012
In the first part, we present a mathematical derivation of a closure relating the Reynolds stress to the mean strain rate for incompressible turbulent flows.
Hu, Xin
core   +1 more source

Unusual Enhancement of Stratospheric Ozone Observed Over the North Bay of Bengal: Results Inferred From NetRAD‐ASMA Campaigns‐2024

open access: yesEarth and Space Science, Volume 13, Issue 7, July 2026.
Abstract The present study examines the roles of advection and air compression in enhancing the stratospheric ozone layer over the North Bay of Bengal during winter. The most significant and novel observation reported is an increase in the stratospheric ozone layer between 21 and 23 km, with ozone partial pressure approximately 50 nbar higher than the ...
Siddarth Shankar Das   +21 more
wiley   +1 more source

Advancing Toward Gray Zone: Evaluation of Tropical Cyclones in Key Basins With the 12.5 km High Resolution CAS FGOALS‐f3 Model

open access: yesEarth and Space Science, Volume 13, Issue 7, July 2026.
Abstract State‐of‐the‐art climate models are approaching gray‐zone resolutions that can improve the representation of tropical cyclones (TCs), but the extent of these gains remains uncertain. This study evaluates the effect of spatial resolution, particularly near the gray‐zone, using three resolution configurations of the Chinese Academy of Sciences ...
Charith Madusanka Widanage   +5 more
wiley   +1 more source

Investigation of mixed element hybrid grid-based CFD methods for rotorcraft flow analysis

open access: yes, 2010
Accurate first-principles flow prediction is essential to the design and development of rotorcraft, and while current numerical analysis tools can, in theory, model the complete flow field, in practice the accuracy of these tools is limited by various ...
Smith, Marlyn J.   +4 more
core  

Discretisation of the velocity-pressure formulation with integrated radial-basis-function networks

open access: yes, 2011
This study is concerned with the use of integrated radial-basis-function networks (IRBFNs) for the discretisation of the velocity-pressure formulation in two dimensions on Cartesian grids. In the approximation of the field variables (i.e.
Thai-Quang, N.   +3 more
core   +1 more source

Viscous and Magnetic Boundary Layers at the Top of the Core in Geodynamo Models

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract We investigate the boundary layer at the top of the Earth's core, which acts as a filter between the interior of the core and its surface, where models built from geomagnetic data are derived. We rely on no‐slip convective geodynamo numerical simulations calculated for a low viscosity fluid, with Ekman numbers E=10−6 $E=1{0}^{-6}$ and E=10−7 ...
D. Jault   +4 more
wiley   +1 more source

On well-posedness of a velocity-vorticity formulation of the Navier-Stokes equations with no-slip boundary conditions

open access: yes, 2017
We study well-posedness of a velocity-vorticity formulation of the Navier--Stokes equations, supplemented with no-slip velocity boundary conditions, a no-penetration vorticity boundary condition, along with a natural vorticity boundary condition depending on a pressure functional.
Olshanskii, Maxim A.   +2 more
openaire   +2 more sources

Spectral element discretization of the vorticity, velocity and pressure formulation of the Navier-Stokes problem

open access: yes, 2007
The two-dimensional Navier–Stokes equations, when provided with non standard boundary conditions which involve the normal component of the velocity and the vorticity, admit a variational formulation with three independent unknowns, the vorticity, the ...
Bernardi, Christine   +4 more
core   +1 more source

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