Results 61 to 70 of about 397 (150)

The Impact of a Long‐Lived Basal Magma Ocean on the Thermochemical Evolution of Mars

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract A basal magma ocean (BMO) has been suggested to form as a consequence of cumulate overturn following crystallization of an initial global magma ocean. As a consequence of enrichment in iron and heat‐producing elements (HPE), the BMO stabilizes gravitationally at the base of the planetary mantle, affecting the efficiency of mantle convection ...
Kar Wai Cheng   +3 more
wiley   +1 more source

Mixing Data‐Driven and Physics‐Based Constitutive Models Using Uncertainty‐Driven Phase Fields

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 20, 30 October 2025.
ABSTRACT There is a high interest in accelerating multiscale models using data‐driven surrogate modeling techniques. Creating a large training dataset encompassing all relevant load scenarios is essential for a good surrogate, yet the computational cost of producing this data quickly becomes a limiting factor.
Joep Storm   +3 more
wiley   +1 more source

Multigrid solver using PETSc

open access: yes, 2018
Describes progress on an Algebraic Multigrid solver for elliptic problems using PETSc.
openaire   +1 more source

Least‐Squares Projected Models for Non‐Intrusive Affinization of Reduced Basis Methods

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 126, Issue 18, 30 September 2025.
ABSTRACT Reduced‐basis methods (RBMs) constitute a promising technique for delivering numerical solutions of parameterized PDEs in real time and with reasonable accuracy. The most significant drawback of RBMs is the requirement of parametric affinity, a condition that only very trivial problems satisfy.
E. Fonn   +6 more
wiley   +1 more source

Description and Convergence Order Analysis of the Finite Element‐Volume Spatial Discretization Method

open access: yesInternational Journal for Numerical Methods in Fluids, Volume 97, Issue 9, Page 1189-1208, September 2025.
This article presents the principles of Finite Element‐Volume discretization and conducts an analysis of its properties and convergence orders. The discretization ensures local mass conservation, second‐order convergence for velocity, and first‐order convergence for pressure.
Maria Adela Puscas   +3 more
wiley   +1 more source

Validation of the Perception of eHealth Technology Scale in Chinese Brief (PETS-C Brief) in Nurses: Survey Study

open access: yesJMIR Nursing
BackgroundeHealth technologies have shown promise in improving the accessibility and quality of nursing research and practice. Little is known about nurses’ perception of eHealth technology that are prerequisites for the implementation of eHealth-based ...
Ayisha Jilili   +6 more
doaj   +1 more source

Forward Modelling of Electrical Resistivity and Induced Polarization Using the Spectral‐Infinite‐Element Method

open access: yesGeophysical Prospecting, Volume 73, Issue 7, September 2025.
ABSTRACT Accurate and efficient modelling of subsurface electrical properties is critical for a wide range of applications, including mineral exploration, environmental studies and hydrogeological investigations. Traditional numerical approaches often use low‐order discretization and impose artificial boundary conditions to approximate the unbounded ...
Kiana Damavandi, Hom Nath Gharti
wiley   +1 more source

The Limitations of a Standard Phase‐Field Model in Reproducing Jointing in Sedimentary Rock Layers

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 11, Page 2709-2727, 10 August 2025.
ABSTRACT Geological applications of phase‐field methods for fracture are notably scarce. This work conducts a numerical examination of the applicability of standard phase‐field models in reproducing jointing within sedimentary layers. We explore how the volumetric‐deviatoric split alongside the AT1 and AT2 phase‐field formulations has several ...
Edoardo Pezzulli   +4 more
wiley   +1 more source

GeomechX: A finite element code for thermo-hydro-mechanical coupled processes in geomechanics

open access: yesSoftwareX
GeomechX is an open-source finite element code developed for thermo-hydro-mechanical (THM) simulations in geomechanics, specializing in modeling linear thermoporoelasticity in porous rock systems.
Hwajung Yoo, Ki-Bok Min
doaj   +1 more source

A numerical framework coupling finite element and meshless methods in sequential and parallel simulations. [PDF]

open access: yesFinite Elem Anal Des, 2023
Nguyen VD   +9 more
europepmc   +1 more source

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