Results 151 to 160 of about 486,149 (332)

Lagrangian Dynamics of Collisionless Matter [PDF]

open access: green, 1996
S. Matarrese, D. Terranova
openalex   +1 more source

A Lagrangian camel

open access: yesCommentarii Mathematici Helvetici, 1999
We prove the Lagrangian analogue of the symplectic camel theorem: there are compact Lagrangian submanifolds of {\Bbb R}^{2n} that cannot be moved through a small hole by a global Hamiltonian isotopy with compact support.
openaire   +4 more sources

A regional implementation of a mixed finite‐element, semi‐implicit dynamical core

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
A regional version of a new dynamical core with an iterated semi‐implicit time discretisation and mixed finite‐element spatial discretisation is described. This involves modifying the mixed‐system and Helmholtz‐preconditioner equations to use lateral boundary condition (LBC) data specified by a driving model.
Christine Johnson   +9 more
wiley   +1 more source

Exploring forms of the moist shallow‐water equations using a new compatible finite‐element discretisation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We present a compatible finite‐element discretisation of a general formulation of moist shallow‐water equations, with the aim of providing a simple model to advance understanding of physics–dynamics coupling. We detail set‐ups and show three moist shallow‐water test cases in four different model formulations. The results demonstrate differences between
Nell Hartney   +2 more
wiley   +1 more source

Unconstrained Lagrangian formulation for bosonic continuous spin theory in flat spacetime of arbitrary dimension

open access: yesNuclear Physics B
We have discovered two unconstrained forms of free Lagrangian for continuous spin(CS) theory in arbitrary flat spacetime dimension for bosonic case. These Lagrangians, unlike that by Schuster and Toro, do not include delta functions and are conventional.
Hiroyuki Takata
doaj   +1 more source

A Lagrangian View of Moisture Dynamics during DYNAMO

open access: green, 2015
Walter M. Hannah   +2 more
openalex   +2 more sources

A study of a free convective boundary layer using a parcel‐based Lagrangian model

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We study the development of a convective boundary layer forced by surface heating and growing into a stably stratified atmosphere above. We compare our results with several recent comprehensive direct numerical simulation (DNS) studies and find broad agreement, and often close quantitative agreement, despite fundamental differences in the numerical ...
Samuel Wallace   +3 more
wiley   +1 more source

Characterizing trade‐wind shallow convection regimes in the open sea with a synergy of ship‐based vertical profiling observations

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We use active remote sensing from a ship during the EUREC4$$ {\mathrm{EUREC}}^4 $$A campaign to characterize the environment before, during, and after precipitation in shallow convection. (1) Shallow clouds barely precipitate (only virga). Congestus clouds generate precipitation, occurring less often in the afternoon but with higher cloud fractions. (2)
Claudia Acquistapace   +5 more
wiley   +1 more source

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