Results 11 to 20 of about 4,174,559 (332)

A novel algorithm of immersed moving boundary scheme for fluid–particle interactions in DEM–LBM

open access: yesComputer Methods in Applied Mechanics and Engineering, 2019
This paper presents an efficient and accurate Immersed Moving Boundary (IMB) algorithm for solving fluid–particle interactions in the framework of the Lattice Boltzmann Method (LBM). Although the IMB scheme has been widely employed in many fluid–particle
Min Wang, Y.T. Feng, D. Owen, T. Qu
semanticscholar   +3 more sources

A thermal immersed boundary–lattice Boltzmann method for moving-boundary flows with Dirichlet and Neumann conditions

open access: yesInternational Journal of Heat and Mass Transfer, 2018
We construct a simple immersed boundary–lattice Boltzmann method for moving-boundary flows with heat transfer. On the basis of the immersed boundary–lattice Boltzmann method for calculating the fluid velocity and the pressure fields presented in the ...
Kosuke Suzuki   +4 more
semanticscholar   +3 more sources

High-order finite element methods for moving boundary problems with prescribed boundary evolution [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2014
We introduce a framework for the design of finite element methods for two-dimensional moving boundary problems with prescribed boundary evolution that have arbitrarily high order of accuracy, both in space and in time.
Evan S. Gawlik, A. Lew
semanticscholar   +3 more sources

Mathematical modelling of concrete carbonation with moving boundary

open access: yesInternational Communications in Heat and Mass Transfer, 2020
This paper presents the mathematical models describing the diffusion of carbon-dioxide in concrete with considering the effect of concrete carbonation. The effect of concrete carbonation on carbon-dioxide diffusion is modelled by using a sink term added ...
Dawang Li, Long-yuan Li, Xianfeng Wang
semanticscholar   +1 more source

Unstable seepage modeling and pressure propagation of shale gas reservoirs

open access: yesPetroleum Exploration and Development, 2016
Pressure disturbance propagation was investigated using the steady state replacement method, the relationship between moving boundary and time was obtained.
Weiyao ZHU   +5 more
doaj   +1 more source

Exact Null Controllability of a Wave Equation with Dirichlet–Neumann Boundary in a Non-Cylindrical Domain

open access: yesMathematics, 2023
In this paper, by applying the Hilbert Uniqueness Method in a non-cylindrical domain, we prove the exact null controllability of one wave equation with a moving boundary.
Lizhi Cui, Jing Lu
doaj   +1 more source

Construction and test of a moving boundary model for negative streamer discharges [PDF]

open access: yes, 2007
Starting from the minimal model for the electrically interacting particle densities in negative streamer discharges, we derive a moving boundary approximation for the ionization fronts.
Brau, Fabian   +4 more
core   +4 more sources

An analytical solution for fluid flow against valve closure in a long pipeline

open access: yesAcademia Engineering, 2023
In this study, we examine the situation at which a valve is closed against fluid flow in a long pipeline. The solution here obtained shows that the closure of the valve divided the flow region in the pipeline into several zones.
Arieh Pistiner
doaj   +1 more source

A comprehensive study of coupled LBM-DEM with immersed moving boundary. [PDF]

open access: yes, 2018
A systematic study is carried out on a fully resolved fluid-particle model which couples the Lattice Boltzmann Method (LBM) and the Discrete Element Method (DEM) using an immersed moving boundary technique.
G. Yang, L. Jing, C. Kwok, Y. Sobral
semanticscholar   +1 more source

Consistent dirichlet boundary conditions for numerical solution of moving boundary problems [PDF]

open access: yes, 2008
We consider the imposition of Dirichlet boundary conditions in the finite element mod-elling of moving boundary problems in one and two dimensions for which the total mass is prescribed.
Baines, M.J.   +2 more
core   +2 more sources

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