Results 1 to 10 of about 44,698 (202)

From the Boltzmann equation to fluid mechanics on a manifold [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011
We apply the Chapman–Enskog procedure to derive hydrodynamic equations on an arbitrary surface from the Boltzmann equation on the surface.
Love, Peter John, Cianci, Donato, '10
openaire   +5 more sources

Globalizing manifold-based reduced models for equations and data [PDF]

open access: yesNature Communications
One of the very few mathematically rigorous nonlinear model reduction methods is the restriction of a dynamical system to a low-dimensional, sufficiently smooth, attracting invariant manifold.
Bálint Kaszás, George Haller
doaj   +2 more sources

Learning image derived PDE-phenotypes from fMRI data [PDF]

open access: yesBrain Informatics
Partial differential equations (PDEs) model various physical phenomena, such as electromagnetic fields and fluid mechanics. Methods such as sparse identification of nonlinear dynamics (SINDy) and PDE-Net 2.0 have been developed to identify and model PDEs
Ion Bica   +5 more
doaj   +2 more sources

Fractional vector calculus and fluid mechanics

open access: yesJournal of the Mechanical Behavior of Materials, 2017
Basic fluid mechanics equations are studied and revised under the prism of fractional continuum mechanics (FCM), a very promising research field that satisfies both experimental and theoretical demands.
Lazopoulos Konstantinos A.   +1 more
doaj   +2 more sources

A Hierarchy of Probability, Fluid and Generalized Densities for the Eulerian Velocivolumetric Description of Fluid Flow, for New Families of Conservation Laws

open access: yesEntropy, 2022
The Reynolds transport theorem occupies a central place in continuum mechanics, providing a generalized integral conservation equation for the transport of any conserved quantity within a fluid or material volume, which can be connected to its ...
Robert K. Niven
doaj   +1 more source

A Data-Driven Space-Time-Parameter Reduced-Order Model with Manifold Learning for Coupled Problems: Application to Deformable Capsules Flowing in Microchannels

open access: yesEntropy, 2021
An innovative data-driven model-order reduction technique is proposed to model dilute micrometric or nanometric suspensions of microcapsules, i.e., microdrops protected in a thin hyperelastic membrane, which are used in Healthcare as innovative drug ...
Toufik Boubehziz   +5 more
doaj   +1 more source

Relativistic fluid mechanics, Kähler manifolds, and supersymmetry [PDF]

open access: yesPhysical Review D, 2003
We propose an alternative for the Clebsch decomposition of currents in fluid mechanics, in terms of complex potentials taking values in a Kahler manifold. We reformulate classical relativistic fluid mechanics in terms of these complex potentials and rederive the existence of an infinite set of conserved currents. We perform a canonical analysis to find
Nyawelo, T. S.   +2 more
openaire   +2 more sources

Numerical manifold method modeling of coupled processes in fractured geological media at multiple scales

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
The greatest challenges of rigorously modeling coupled hydro-mechanical (HM) processes in fractured geological media at different scales are associated with computational geometry.
Mengsu Hu, Jonny Rutqvist
doaj   +1 more source

Parameterization of travelling waves in plane Poiseuille flow [PDF]

open access: yes, 2012
© The authors 2012. Published by Oxford University Press on behalf of the Institute of Mathematics and its Applications. All rights reserved. This is a pre-copyedited, author-produced PDF of an article accepted for publication in [IMA Journal of Applied ...
Smith, WR, Wissink, JG
core   +1 more source

Relative Critical Points [PDF]

open access: yes, 2013
Relative equilibria of Lagrangian and Hamiltonian systems with symmetry are critical points of appropriate scalar functions parametrized by the Lie algebra (or its dual) of the symmetry group.
Lewis, Debra
core   +4 more sources

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