Atmospheric energy spectra in global kilometre-scale models
Eleven 40-day long integrations of five different global models with horizontal resolutions of
less than 9 km are compared in terms of their global energy spectra. The method of normal …
less than 9 km are compared in terms of their global energy spectra. The method of normal …
Single-particle Lagrangian statistics from direct numerical simulations of rotating-stratified turbulence
Geophysical fluid flows are predominantly turbulent and often strongly affected by the Earth's
rotation, as well as by stable density stratification. Using direct numerical simulations of …
rotation, as well as by stable density stratification. Using direct numerical simulations of …
[HTML][HTML] A primitive variable discrete exterior calculus discretization of incompressible Navier–Stokes equations over surface simplicial meshes
P Jagad, A Abukhwejah, M Mohamed, R Samtaney - Physics of Fluids, 2021 - pubs.aip.org
A conservative primitive variable discrete exterior calculus (DEC) discretization of the Navier–
Stokes equations is performed. An existing DEC method [MS Mohamed, AN Hirani, and R …
Stokes equations is performed. An existing DEC method [MS Mohamed, AN Hirani, and R …
FluidSim: Modular, object-oriented python package for high-performance CFD simulations
AV Mohanan, C Bonamy, MC Linares… - arXiv preprint arXiv …, 2018 - arxiv.org
The Python package fluidsim is introduced in this article as an extensible framework for
Computational Fluid Mechanics (CFD) solvers. It is developed as a part of FluidDyn project …
Computational Fluid Mechanics (CFD) solvers. It is developed as a part of FluidDyn project …
[HTML][HTML] Introduction to focus issue: two-dimensional turbulence
The paper “Inertial Ranges in Two-Dimensional Turbulence” by Robert H. Kraichnan
appeared in Physics of Fluids in 1967. 1 Fifty years later, with 17 invited papers from 43 …
appeared in Physics of Fluids in 1967. 1 Fifty years later, with 17 invited papers from 43 …
Effects of rotation on vorticity dynamics on a sphere with discrete exterior calculus
P Jagad, R Samtaney - Physics of Fluids, 2021 - pubs.aip.org
We investigate incompressible, inviscid vorticity dynamics on a rotating unit sphere using a
discrete exterior calculus scheme. For a prescribed initial vorticity distribution, we vary the …
discrete exterior calculus scheme. For a prescribed initial vorticity distribution, we vary the …
FluidDyn: a python open-source framework for research and teaching in fluid dynamics
FluidDyn is a project to foster open-science and open-source in the fluid dynamics
community. It is thought of as a research project to channel open-source dynamics, methods …
community. It is thought of as a research project to channel open-source dynamics, methods …
Shallow water wave turbulence
The dynamics of irrotational shallow water wave turbulence forced at large scales and
dissipated at small scales is investigated. First, we derive the shallow water analogue of the …
dissipated at small scales is investigated. First, we derive the shallow water analogue of the …
Geophysical turbulence dominated by inertia–gravity waves
Recent evidence from both oceanic observations and global-scale ocean model simulations
indicate the existence of regions where low-mode internal tidal energy dominates over that …
indicate the existence of regions where low-mode internal tidal energy dominates over that …
Turbulence and equatorial waves in moist and dry shallow‐water flow, excited through mesoscale stochastic forcing
Turbulence and large‐scale waves in the tropical region are studied using the spherical
shallow‐water equations. With mesoscale vorticity forcing, both moist and dry systems show …
shallow‐water equations. With mesoscale vorticity forcing, both moist and dry systems show …