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A three-dimensional immersed boundary method for non-Newtonian fluids [PDF]

open access: yesTheoretical and Applied Mechanics Letters, 2018
: Fluid-structure-interaction (FSI) phenomenon is common in science and engineering. The fluid involved in an FSI problem may be non-Newtonian such as blood. A popular framework for FSI problems is Peskin's immersed boundary (IB) method. However, most of
Luoding Zhu
doaj   +4 more sources

Hybrid finite difference/finite element immersed boundary method. [PDF]

open access: yesInt J Numer Method Biomed Eng, 2017
The immersed boundary method is an approach to fluid-structure interaction that uses a Lagrangian description of the structural deformations, stresses, and forces along with an Eulerian description of the momentum, viscosity, and incompressibility of ...
Griffith BE, Luo X.
europepmc   +5 more sources

A study of different modeling choices for simulating platelets within the immersed boundary method. [PDF]

open access: yesAppl Numer Math, 2013
The Immersed Boundary (IB) method is a widely-used numerical methodology for the simulation of fluid-structure interaction problems. The IB method utilizes an Eulerian discretization for the fluid equations of motion while maintaining a Lagrangian ...
Shankar V   +3 more
europepmc   +4 more sources

Fluid Dynamics of Biomimetic Pectoral Fin Propulsion Using Immersed Boundary Method [PDF]

open access: yesApplied Bionics and Biomechanics, 2016
Numerical simulations are carried out to study the fluid dynamics of a complex-shaped low-aspect-ratio pectoral fin that performs the labriform swimming.
Ningyu Li, Yumin Su
doaj   +2 more sources

Sharp interface immersed boundary method for simulating three-dimensional swimming fish

open access: yesEngineering Applications of Computational Fluid Mechanics, 2020
A second order finite-difference numerical method is used to solve the Navier–Stokes equations of incompressible flow, in which the solid body with complex geometry is immersed into the fluid domain with orthogonal Cartesian meshes.
Zuo Cui, Zixuan Yang, Hongzhou Jiang
doaj   +2 more sources

A Fourier spectral immersed boundary method with exact translation invariance, improved boundary resolution, and a divergence-free velocity field [PDF]

open access: yesJournal of Computational Physics, 2023
This paper introduces a new immersed boundary (IB) method for viscous incompressible flow, based on a Fourier spectral method for the fluid solver and on the nonuniform fast Fourier transform (NUFFT) algorithm for coupling the fluid with the immersed ...
Zhe Chen, C. Peskin
semanticscholar   +1 more source

Numerical Simulation in Microvessels for the Design of Drug Carriers with the Immersed Boundary-Lattice Boltzmann Method [PDF]

open access: yesMicromachines
This study employs numerical techniques to investigate the motion characteristics of red blood cells (RBCs) and drug carriers (DCs) within microvessels. A coupled model of the lattice Boltzmann method (LBM) and immersed boundary method (IBM) is proposed ...
Yulin Hou   +3 more
doaj   +2 more sources

Investigation of hydrodynamics of water impact and tail slamming of high-speed water entry with a novel immersed boundary method

open access: yesJournal of Fluid Mechanics, 2023
High-speed water entry is a transient hydrodynamic process that is accompanied by strongly compressible flow, free surface splash, cavity evolution and other nonlinear hydrodynamic phenomena. To address these problems, a novel fluid–structure interaction
Wen-Tao Liu   +4 more
semanticscholar   +1 more source

A face-based immersed boundary method for compressible flows using a uniform interpolation stencil

open access: yesFrontiers in Mechanical Engineering, 2022
In this study, an immersed boundary method developed for compressible viscous flows (Ramakrishnan, R., Girdhar, A., & Ghosh, S. (2016). Immersed Boundary Methods for Compressible Laminar Flows) is modified to improve their stability and robustness ...
M. L. N. V. Kasturi Rangan   +1 more
doaj   +1 more source

Modeling impedance boundary conditions and acoustic barriers using the immersed boundary method: The one-dimensional case.

open access: yesJournal of the Acoustical Society of America, 2023
Immersed boundary methods are heavily used in computational fluid dynamics, as an alternative to volumetric meshing, when a problem contains irregular geometric features.
S. Bilbao
semanticscholar   +1 more source

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