Results 21 to 30 of about 210,599 (274)

A Non-Equilibrium Interpolation Scheme for IB-LBM Optimized by Approximate Force

open access: yesAxioms, 2023
A non-equilibrium scheme and an optimized approximate force are proposed for the immersed boundary–lattice Boltzmann method (IB-LBM) to solve the fluid–structure interaction (FSI) equations.
Bowen Liu, Weiping Shi
doaj   +1 more source

A CFD-DEM-IBM method for sedimentation of particles with high resolution

open access: yesShui kexue jinzhan, 2021
A CFD-DEM-IBM method with high resolution is proposed based on the immersed boundary method (IBM) to describe the sedimentation phenomenon accurately and to investigate the underlying influence mechanism between fluid and particles in dense fluid ...
Yingtang DI, Lanhao ZHAO, Jia MAO
doaj   +1 more source

The curved kinetic boundary layer of active matter [PDF]

open access: yes, 2017
The finite reorient-time of swimmers leads to a finite run length $\ell$ and the kinetic accumulation boundary layer on the microscopic length scale $\delta$ on a non-penetrating wall.
Brady, John F., Yan, Wen
core   +2 more sources

Simulations of self-propelled anguilliform swimming using the immersed boundary method in OpenFOAM

open access: yesEngineering Applications of Computational Fluid Mechanics, 2019
This study extends the existing immersed boundary method (IBM) in the open source toolbox OpenFOAM for solving fluid-structure interactions involving the immersed structure with changeable shapes.
Hui Feng   +3 more
doaj   +1 more source

On the effect of the contact surface definition in the Cartesian grid finite element method

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2018
The definition of the surface plays an important role in the solution of contact problems, as the evaluation of the contact force is based on the measure of the gap between the solids.
José Manuel Navarro-Jiménez   +3 more
doaj   +1 more source

Velocity Reconstruction of Arbitrary Shaped Incompressible Flow Field with Noises Using Seamless Immersed Boundary Method

open access: yesJournal of Thermal Science and Technology, 2012
In order to reconstruct the arbitrary shaped incompressible velocity field with noises, a new data-processing fluid dynamics (DFD) based upon the seamless immersed boundary method is proposed.
Hidetoshi NISHIDA
doaj   +1 more source

Galilean-Invariant Characteristic-Based Volume Penalization Method for Supersonic Flows with Moving Boundaries

open access: yesFluids, 2021
This work extends the characteristic-based volume penalization method, originally developed and demonstrated for compressible subsonic viscous flows in (J. Comput. Phys.
Nurlybek Kasimov   +3 more
doaj   +1 more source

Accurate computation of surface stresses and forces with immersed boundary methods [PDF]

open access: yes, 2016
Many immersed boundary methods solve for surface stresses that impose the velocity boundary conditions on an immersed body. These surface stresses may contain spurious oscillations that make them ill-suited for representing the physical surface stresses ...
Colonius, Tim   +3 more
core   +2 more sources

Immersed Boundary-Finite Difference Lattice Boltzmann Method Using Two Relaxation Times

open access: yesJournal of Fluid Science and Technology, 2013
Immersed boundary-lattice Boltzmann methods (IB-LBM) with the single-relaxation time (SRT) cause non-physical distortion in fluid velocity when the Reynolds number is low, i.e.
Roberto ROJAS   +3 more
doaj   +1 more source

A Revisit of Implicit Monolithic Algorithms for Compressible Solids Immersed Inside a Compressible Liquid

open access: yesFluids, 2021
With the development of mature Computational Fluid Dynamics (CFD) tools for fluids (air and liquid) and Finite Element Methods (FEM) for solids and structures, many approaches have been proposed to tackle the so-called Fluid–Structure Interaction or ...
Sheldon Wang
doaj   +1 more source

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