Results 21 to 30 of about 14,134,355 (324)

A software framework for embedded nonlinear model predictive control using a gradient-based augmented Lagrangian approach (GRAMPC) [PDF]

open access: yesOptimization and Engineering, 2018
A nonlinear MPC framework is presented that is suitable for dynamical systems with sampling times in the (sub)millisecond range and that allows for an efficient implementation on embedded hardware.
Tobias Englert   +4 more
semanticscholar   +1 more source

Numerical study on the hot compression test for bulk metal forming application

open access: yesSN Applied Sciences, 2022
Article highlights Cylindrical compression test is modeled by finite element method and compared with experimental results. The Lagrangian and the Arbitrary Lagrangian–Eulerian (ALE) approaches are used to model the experiments.
Diego Gomez-Marquez   +5 more
doaj   +1 more source

Lagrangian evolution approach to surface-patch quadrangulation

open access: yesApplications of Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Serena Morigi   +3 more
openaire   +3 more sources

Improving collisional growth in Lagrangian cloud models: development and verification of a new splitting algorithm [PDF]

open access: yesGeoscientific Model Development, 2018
Lagrangian cloud models (LCMs) are increasingly used in the cloud physics community. They not only enable a very detailed representation of cloud microphysics but also lack numerical errors typical for most other models.
J. Schwenkel   +4 more
doaj   +1 more source

A Review of CO2 Plume Dispersion Modeling for Application to Offshore Carbon Capture and Storage

open access: yesJournal of Marine Science and Engineering, 2023
The exponential increase in greenhouse gas emissions necessitates urgent measures to mitigate climate change impacts. Carbon capture and storage (CCS) has emerged as a promising solution, capturing CO2 from industrial processes and storing it underground.
Yong-Hoon Kim, Young-Gyu Park
doaj   +1 more source

Limiting absorption principle on Riemannian scattering (asymptotically conic) spaces, a Lagrangian approach [PDF]

open access: yesCommunications in Partial Differential Equations, 2019
We use a Lagrangian perspective to show the limiting absorption principle on Riemannian scattering, i.e. asymptotically conic, spaces, and their generalizations.
A. Vasy
semanticscholar   +1 more source

Spectral-clustering approach to Lagrangian vortex detection [PDF]

open access: yesPhysical Review E, 2016
One of the ubiquitous features of real-life turbulent flows is the existence and persistence of coherent vortices. Here we show that such coherent vortices can be extracted as clusters of Lagrangian trajectories. We carry out the clustering on a weighted graph, with the weights measuring pairwise distances of fluid trajectories in the extended phase ...
Hadjighasem, Alireza   +3 more
openaire   +3 more sources

Topological sensitivities via a Lagrangian approach for semilinear problems [PDF]

open access: yesNonlinearity, 2018
In this paper we present a methodology that allows the efficient computation of the topological derivative for semilinear elliptic problems within the averaged adjoint Lagrangian framework.
K. Sturm
semanticscholar   +1 more source

Lagrangian Data Assimilation for Improving Model Estimates of Velocity Fields and Residual Currents in a Tidal Estuary

open access: yesApplied Sciences, 2021
Numerical models are associated with uncertainties that can be reduced through data assimilation (DA). Lower costs have driven a recent tendency to use Lagrangian instruments such as drifters and floats to obtain information about water bodies.
Neda Mardani   +5 more
doaj   +1 more source

A Backwards-Tracking Lagrangian-Eulerian Method for Viscoelastic Two-Fluid Flows

open access: yesApplied Sciences, 2021
A new Lagrangian–Eulerian method for the simulation of viscoelastic free surface flow is proposed. The approach is developed from a method in which the constitutive equation for viscoelastic stress is solved at Lagrangian nodes, which are convected by ...
Simon Ingelsten   +3 more
doaj   +1 more source

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