Results 191 to 200 of about 477,243 (287)

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

Quarterly 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, Ben Shipway, Thomas Melvin, Thomas Bendall, James Kent, Ian Boutle, Alex Brown, Mohamed Zerroukat, Benjamin Buchenau, Nigel Wood   +9 more
wiley   +1 more source

Free Boundary Hamiltonian Stationary Lagrangian Discs in C 2. [PDF]

J Geom Anal
Gaia F.
europepmc   +1 more source

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

Quarterly 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, Thomas M. Bendall, Jemma Shipton   +2 more
wiley   +1 more source

Analyzing Riemann-Liouville constraints in second-order Lagrangian fractional electrodynamic models. [PDF]

PLoS One
Alawaideh YM, Al-Khamiseh BM, Adu IK.
europepmc   +1 more source

Lagrangian CFD modeling of ammonia sprays: A correlation across flash boiling and evaporative conditions

Jacopo Zembi, Michele Battistoni, Adrián Pandal, Ronan Pelé, Pierre Bréquigny, Camille Hespel, Christine Mounaïm‐Rousselle   +6 more
openalex   +1 more source

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

Quarterly 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, Steven Böing, Matthias Frey, David Dritschel   +3 more
wiley   +1 more source

Geometric and arithmetic characterization of [Formula: see text]-module flatness with applications to tensor products. [PDF]

PLoS One
Tang JG, Lei HR, Liu M, Peng JY.
europepmc   +1 more source

Evaluation of the WRF model for simulating deep convection and cold‐pool characteristics relevant to wind‐energy applications in Germany

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Deep convection and cold‐pool characteristics over Germany during July 2023 are investigated using Deutscher Wetterdienst (DWD) radar observations and a Weather Research and Forecasting (WRF) model simulation. The temporal evolution of convective cell features reveals a downward‐facing parabolic pattern in both WRF and observations, in terms of cell ...
Gerard Kilroy, Jeffrey D. Thayer
wiley   +1 more source

Fisher Information and the Dynamics of Multicellular Ageing. [PDF]

Entropy (Basel)
Hale ZF, Cánez GA, Michaels TCT.
europepmc   +1 more source

Enhanced Sampled‐Data Model Predictive Control via Nonlinear Lifting

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper introduces a novel nonlinear model predictive control (NMPC) framework that incorporates a lifting technique to enhance control performance for nonlinear systems. While the lifting technique has been widely used in linear systems to capture intersample behavior, their application to nonlinear systems remains unexplored.
Nuthasith Gerdpratoom, Fumiya Matsuzaki, Yutaka Yamamoto, Kaoru Yamamoto   +3 more
wiley   +1 more source