Results 1 to 10 of about 4,174,559 (332)

A spatial epidemic model with a moving boundary. [PDF]

open access: yesInfect Dis Model, 2021
We present a new mathematical model to investigate the spatial spread of an infectious disease. The model consists of a nonlinear PDE system with an unknown velocity field, defined on an epidemic domain that changes with time.
Zhuang Q, Wang J.
europepmc   +2 more sources

Moving boundary problems [PDF]

open access: yesBulletin of the American Mathematical Society, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
S. Čanić
openaire   +2 more sources

Dynamics of wave equations with moving boundary [PDF]

open access: yes, 2017
This paper is concerned with long-time dynamics of weakly damped semilinear wave equations defined on domains with moving boundary. Since the boundary is a function of the time variable the problem is intrinsically non-autonomous.
T. Ma   +2 more
semanticscholar   +3 more sources

Nonlinear Moving Boundary Model of Low-Permeability Reservoir

open access: yesEnergies, 2021
At present, there are two main methods for solving oil and gas seepage equations: analytical and numerical methods. In most cases, it is difficult to find the analytical solution, and the numerical solution process is complex with limited accuracy. Based
Xiarong Jiao, Shan Jiang, Hong Liu
doaj   +1 more source

Sensitivity to the application range of buoyancy force in the diffuse-interface immersed boundary method

open access: yesJournal of Fluid Science and Technology, 2022
We investigate the sensitivity to the application range of buoyancy force near the boundary in the diffuse-interface immersed boundary method. The flow fields not only inside the boundary but also outside the boundary are usually computed in the immersed
Madoka ENDO   +2 more
doaj   +1 more source

A sharp-front moving boundary model for malignant invasion [PDF]

open access: yes, 2020
We analyse a novel mathematical model of malignant invasion which takes the form of a two-phase moving boundary problem describing the invasion of a population of malignant cells into a population of background tissue, such as skin.
Maud El-Hachem, S. McCue, M. Simpson
semanticscholar   +1 more source

Sensitivity analysis of vibration response of timoshenko beam to mass ratio and velocity of moving mass and boundary conditions: Semi-analytical approach

open access: yesForces in Mechanics, 2023
In real-world physics phenomena, the boundary conditions of structural members in the structural beam systems affect the system response. Also, moving load or mass problems are used widely in many engineering fields, such as structural, transportation ...
Amin Ghannadiasl, Massood Mofid
doaj   +1 more source

A sharp interface direct-forcing immersed boundary method using the moving least square approximation

open access: yesJournal of Fluid Science and Technology, 2021
Based on the Moving Least Square (MLS) approximation, we propose a sharp interface direct-forcing immersed boundary method for incompressible fluid flows with fixed and moving boundaries.
Mehdi BADRI GHOMIZAD   +2 more
doaj   +1 more source

Asymptotic Approximations of the Solution for a Traveling String under Boundary Damping [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2019
Transversal vibrations of an axially moving string under boundary damping are investigated. Mathematically, it represents a homogenous linear partial differential equation subject to nonhomogeneous boundary conditions.
Rajab A. Malookani   +2 more
doaj   +1 more source

A Scalable Moving Boundary Treatment in the Lattice Boltzmann Method

open access: yesApplied Sciences, 2021
Based on the lattice Boltzmann Method (LBM), a new moving boundary treatment is proposed by studying the influence of the moving boundary in a low-speed incompressible fluid.
Peng He   +3 more
doaj   +1 more source

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