Results 21 to 30 of about 305,584 (295)

Axisymmetric viscous incompressible flow simulation by using the Particle finite element PFEM-2 method in the open source Kratos code

open access: yesТруды Института системного программирования РАН, 2018
In this paper, the particle finite element method (PFEM-2) for the simulation of the axisymmetric flows of a viscous incompressible fluid is considered.
E. V. Smirnova   +2 more
doaj   +1 more source

A multi-scale coupling finite element method based on the microscopic of soil particle motions

open access: yesRock and Soil Mechanics, 2021
Soil is a multi-phase and multi-scale geomaterial that exhibits dramatically inhomogeneous and discontinuous physical nature. Conventional finite element method, which is conceptualized at a single macroscale and ignores the control mechanism of soil at ...
LIU Jia, FENG De-luan
doaj   +1 more source

THE PARTICLE FINITE ELEMENT METHOD — AN OVERVIEW

open access: yesInternational Journal of Computational Methods, 2004
We present a general formulation for the analysis of fluid-structure interaction problems using the particle finite element method (PFEM). The key feature of the PFEM is the use of a Lagrangian description to model the motion of nodes (particles) in both the fluid and the structure domains.
Oñate, E.   +3 more
openaire   +4 more sources

Optimization of sheet components locating scheme based on improved particle swarm optimization

open access: yesJournal of Hebei University of Science and Technology, 2015
The current sheet components locating scheme optimization needs a great deal of finite element analysis, which limits the fixture design efficiency.
Heng ZHANG, Yanfeng XING
doaj   +1 more source

A Lagrangian–Eulerian procedure for the coupled solution of the Navier–Stokes and shallow water equations for landslide-generated waves

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2022
This work presents a partitioned method for landslide-generated wave events. The proposed strategy combines a Lagrangian Navier Stokes multi-fluid solver with an Eulerian method based on the Boussinesq shallow water equations.
Miguel Masó   +4 more
doaj   +1 more source

A model for orientation effects in electron‐transfer reactions [PDF]

open access: yes, 1984
A method for solving the single‐particle Schrödinger equation with an oblate spheroidal potential of finite depth is presented. The wave functions are then used to calculate the matrix element T_BA which appears in theories of nonadiabatic electron ...
Newton cf. M. D.   +9 more
core   +3 more sources

Three-dimensional metal particle flow simulation during the whole rolling process for 60 kg/m heavy rail

open access: yesAdvances in Mechanical Engineering, 2017
Three-dimensional metal particle flow simulation during the whole rolling process for 60 kg/m heavy rail was accomplished by explicit dynamic finite element method and modified updating geometric method.
Cheng-gang Pan   +4 more
doaj   +1 more source

Swarm Intelligent Optimization Conjunction with Kriging Model for Bridge Structure Finite Element Model Updating

open access: yesBuildings, 2022
For the simple bridge structure, the finite element model established by drawing and elastic mechanics method is accurate. However, when faced with large and complex long-span bridge structures, there are inevitable differences between the finite element
Jie Wu   +6 more
doaj   +1 more source

Possibilities of the Particle Finite Element Method in Computational Mechanics [PDF]

open access: yes, 2010
We present some developments in the formulation of the Particle Finite Element Method (PFEM) for analysis of complex coupled problems in fluid and solid mechanics accounting for fluid-structure interaction and coupled thermal effects. The PFEM uses an updated Lagrangian description to model the motion of nodes (particles) in both the fluid and the ...
Oñate, E.   +4 more
openaire   +2 more sources

Structural Damage Recognition Based on the Finite Element Method and Quantum Particle Swarm Optimization Algorithm

open access: yesIEEE Access, 2020
Structural damage recognition is always the concerned focus in many fields like aerospace, petroleum and petrochemical industry, industrial production and civil life.
Xin Zhang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy