Results 21 to 30 of about 397 (150)

A Note on Massively Parallel Implementation of FETI for the Solution of Contact Problems

open access: yesAdvances in Electrical and Electronic Engineering, 2017
The paper deals with the solution of large multibody contact problems using massively parallel computers and domain decomposition methods. These methods can solve the problems discretized by billions of nodal variables at the cost nearly proportional to ...
David Horak   +7 more
doaj   +1 more source

Thermal finite element analysis of complex heat sinks using open source tools and high-performance computing

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2022
The modeling of heat transfer phenomena in thermal systems has been extensively explored in industry and academia by using the finite element method (FEM) with commercial software.
Francisco Javier Ramírez-Gil   +3 more
doaj   +1 more source

On the Numerical Evaluation of Wall Shear Stress Using the Finite Element Method. [PDF]

open access: yesInt J Numer Method Biomed Eng
We compare a modified variationally consistent boundary‐flux method for wall shear stress evaluation with standard projection technique in aneurysm models and two benchmark examples, demonstrating that the interplay between finite element choice, meshing strategy, and evaluation method has a significant and sometimes counter‐intuitive impact on ...
Brunátová J   +3 more
europepmc   +2 more sources

Time-Implicit Hydrodynamics for Euler Flows*

open access: yesESAIM: Proceedings and Surveys, 2014
We consider the Euler equations with gravity source terms, and derive a time-implicit resolution scheme from the explicit one developed by Vides et al. [8].
Van Criekingen Serge   +3 more
doaj   +1 more source

Accelerating finite element modeling of heat sinks with parallel processing using FEniCSx

open access: yesCase Studies in Thermal Engineering, 2023
When designing machine elements and electronics, a detailed heat conduction analysis gives valuable insight into volumetric strains, displacements, and stress because they depend on temperature.
Varun Kumar R.   +5 more
doaj   +1 more source

PETSc Users Manual Revision 3.8 [PDF]

open access: yes, 2017
This manual describes the use of PETSc for the numerical solution of partial differential equations and related problems on high-performance computers. The Portable, Extensible Toolkit for Scientific Computation (PETSc) is a suite of data structures and routines that provide the building blocks for the implementation of large-scale application codes on
S. Balay   +19 more
openaire   +2 more sources

eSCAPE: Regional to Global Scale Landscape Evolution Model v2.0 [PDF]

open access: yesGeoscientific Model Development, 2019
The eSCAPE model is a Python-based landscape evolution model that simulates over geological time (1) the dynamics of the landscape, (2) the transport of sediment from source to sink, and (3) continental and marine sedimentary basin formation under ...
T. Salles
doaj   +1 more source

Developing a Geodynamics Simulator with PETSc

open access: yes, 2006
Most high-performance simulation codes are not written from scratch but begin as desktop experiments and are subsequently migrated to a scalable, parallel paradigm. This transition can be painful, however, because the restructuring required in conversion forces most authors to abandon their serial code and begin an entirely new parallel code.
Knepley, MG, Katz, R, Smith, B
openaire   +2 more sources

PETSC: pattern-based embedding for time series classification

open access: yesData Mining and Knowledge Discovery, 2022
Efficient and interpretable classification of time series is an essential data mining task with many real-world applications. Recently several dictionary- and shapelet-based time series classification methods have been proposed that employ contiguous subsequences of fixed length.
Feremans, Len   +2 more
openaire   +3 more sources

PERFORMANCE EVALUATION OF DIFFERENT LINEAR EQUATION SOLVERS FOR SOLVING NONLINEAR FE PROBLEMS ON MULTICORE ARCHITECTURES

open access: yesActa Polytechnica CTU Proceedings, 2018
The aim of this paper is to evaluate the performance of existing parallel linear equation solvers to solving large-scale, nonlinear finite element analysis problems on systems with distributed memory.
Michal Bošanský, Bořek Patzák
doaj   +1 more source

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