Results 71 to 80 of about 1,387 (186)

Formation and Arrest of a Surface Density Front via Strain‐Driven Frontogenesis

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Ocean fronts play a key role in the vertical transport of heat, energy and biogeochemical tracers, but their behavior and life cycle is not well‐understood, especially at smaller scales. We present a large‐eddy simulation of mixed layer frontogenesis capturing the onset of a submesoscale regime from a larger scale, rotation‐dominated front ...
Erin Atkinson, Nicolas Grisouard
wiley   +1 more source

Boussinesq/Boussinesq systems for internal waves with a free surface, and the KdV approximation [PDF]

ESAIM: Mathematical Modelling and Numerical Analysis, 2011
To appear in ...
openaire   +2 more sources

kh2d-solver: A Python library for idealized two-dimensional incompressible Kelvin-Helmholtz instability

Applied and Computational Mechanics
This study presents an open-source Python library for simulating two-dimensional incompressible Kelvin-Helmholtz (KH) instabilities in stratified shear flows.
Herho S. H. S., Trilaksono N. J., Fajary F. R., Napitupulu G., Anwar I. P., Khadami F., Irawan D. E.   +6 more
doaj   +1 more source

Assessing the Impact of Countergradient Fluxes on the General Circulation in the Community Atmosphere Model

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Parameterizing boundary layer turbulence in Earth System Models (ESMs) introduces a key source of uncertainty. Here, we explore the impact of implementing a prognostic formulation (PMF) for momentum flux, which permits countergradient (CG) fluxes.
Kyle M. Nardi, Colin M. Zarzycki, Vincent E. Larson, Benjamin A. Stephens, George H. Bryan, Julio Bacmeister   +5 more
wiley   +1 more source

Numerical simulation of high-swirl flow in axial turbine stage

EPJ Web of Conferences, 2016
This article deals with numerical modelling of flow in an axial turbine stage with prismatic blades which are not equipped with shroud. In this case flow through a radial gap above and below ends of blades leads to generation of strong secondary vortices
Straka Petr
doaj   +1 more source

GNSS Zenith Wet Delay as a Boundary Layer Diagnostic: Regime‐Dependent Turbulence Signatures From Large Eddy Simulation and Observations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 12, 28 June 2026.
Abstract Global Navigation Satellite Systems (GNSS) provide continuous measurements of zenith wet delay (ZWD), reflecting column‐integrated atmospheric water vapor. While the slowly varying ZWD is routinely assimilated in numerical weather prediction, the rapid fluctuations on timescales of seconds to minutes that arise from boundary‐layer turbulence ...
Gaël Kermarrec, Tim Schrader, Xavier Calbet, Zhiguo Deng   +3 more
wiley   +1 more source

Spectral Jacobi approximations for Boussinesq systems

Studies in Applied Mathematics
AbstractThis paper is concerned with the numerical approximation of initial‐boundary‐value problems of a three‐parameter family of Bona–Smith systems, derived as a model for the propagation of surface waves under a physical Boussinesq regime. The work proposed here is focused on the corresponding problem with Dirichlet boundary conditions and its ...
openaire   +3 more sources

Weakly Nonlinear Instability of a Convective Flow in a Plane Vertical Channel

Fluids
The weakly nonlinear stability analysis of a convective flow in a planar vertical fluid layer is performed in this paper. The base flow in the vertical direction is generated by internal heat sources distributed within the fluid.
Natalja Budkina, Valentina Koliskina, Andrei Kolyshkin, Inta Volodko   +3 more
doaj   +1 more source

Energy Stability of Benard-Darcy Two-Component Convection of Maxwell Fluid

International Journal of Applied Mechanics and Engineering, 2013
Energy stability of a horizontal layer of a two-component Maxwell fluid in a porous medium heated and salted from below is studied under the Oberbeck-Boussinesq-Darcy approximation using the Lyapunov direct method.
H. Muti, H. Demir, P.G. Siddheshwar
doaj   +1 more source

Liquid-Liquid Polymerization Front under Quasiperiodic Gravitational Modulation

MATEC Web of Conferences, 2016
The influence of quasi-periodic gravitational modulation of polymerization front with liquid monomer and liquid polymer is studied in this paper. The model considered includes the heat equation, the equation for the concentration and the Navier-Stokes ...
Assiyad Saadia, Allali Karam, Belhaq Mohamed   +2 more
doaj   +1 more source