Results 21 to 30 of about 1,446,963 (101)

Fully discrete finite element data assimilation method for the heat equation [PDF]

ESAIM: Mathematical Modelling and Numerical Analysis, 2017
We consider a finite element discretization for the reconstruction of the final state of the heat equation, when the initial data is unknown, but additional data is given in a sub domain in the space time.
E. Burman, Jonathan Ish-Horowicz, L. Oksanen   +2 more
semanticscholar   +1 more source

Numerical analysis of a nonlinearly stable and positive control volume finite element scheme for Richards equation with anisotropy

ESAIM: Mathematical Modelling and Numerical Analysis, 2018
We extend the nonlinear Control Volume Finite Element scheme of [C. Cancès and C. Guichard, Math. Comput. 85 (2016) 549–580]. to the discretization of Richards equation.
A. Oulhaj, C. Cancès, C. Chainais-Hillairet   +2 more
semanticscholar   +1 more source

A numerical analysis focused comparison of several Finite Volume schemes for an Unipolar Degenerated Drift-Diffusion Model [PDF]

IMA Journal of Numerical Analysis, 2019
In this paper we consider a unipolar degenerate drift-diffusion system where the relation between the concentration of the charged species $c$ and the chemical potential $h$ is $h(c)=\log \frac{c}{1-c}$.
C. Cancès, C. Chainais-Hillairet, J. Fuhrmann, Benoît Gaudeul   +3 more
semanticscholar   +1 more source

Numerical analysis of supercritical n-decane upward flow and heat transfer characteristics in the buffer layer of a vertical tube

Numerical Heat Transfer, Part A Applications, 2020
To explore the behavior and mechanisms of heat transfer deterioration (HTD), the flow and thermal performances of supercritical n-decane in upward vertical tubes are investigated with emphasis on the boundary layer.
Yong Li, Feng Sun, G. Xie, B. Sundén
semanticscholar   +1 more source

Numerical analysis of a projection-based stabilized POD-ROM for incompressible flows [PDF]

SIAM Journal on Numerical Analysis, 2019
In this paper, we propose a new stabilized projection-based POD-ROM for the numerical simulation of incompressible flows. The new method draws inspiration from successful numerical stabilization techniques used in the context of Finite Element (FE ...
S. Rubino
semanticscholar   +1 more source

Yield design‐based numerical analysis of three‐dimensional reinforced concrete structures

International journal for numerical and analytical methods in geomechanics (Print), 2018
The objective of this contribution is to present some new recent developments regarding the evaluation of the ultimate bearing capacity of massive three‐dimensional reinforced concrete structures which cannot be modeled as 1D (beams) or 2D (plates ...
Hugues Vincent, M. Arquier, J. Bleyer, P. de Buhan   +3 more
semanticscholar   +1 more source

Numerical Analysis of Unsteady Implicitly Constituted Incompressible Fluids: 3-Field Formulation

SIAM Journal on Numerical Analysis, 2020
In the classical theory of fluid mechanics a linear relationship between the shear stress and the symmetric velocity gradient tensor is often assumed.
P. Farrell, P. A. Gazca-Orozco, E. Süli
semanticscholar   +1 more source

Exponentiation Using Laplace Expansion [PDF]

arXiv, 2021
This article derives an equation for exponentiation that can be used for calculating exponents using a parallel computing architecture.
arxiv  

A remark on entropy numbers [PDF]

arXiv, 2020
Talagrand's fundamental result on the entropy numbers is slightly improved. Our proof uses different ideas based on results from greedy approximation.
arxiv  

varFEM: variational formulation based programming for finite element methods in Matlab [PDF]

arXiv, 2022
This paper summarizes the development of varFEM, which provides a realization of the programming style in FreeFEM by using the Matlab language.
arxiv