Results 21 to 30 of about 37,582 (305)

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

A Multi-Fidelity Framework for Wildland Fire Behavior Simulations over Complex Terrain

open access: yesAtmosphere, 2021
A method for the large-eddy simulation (LES) of wildfire spread over complex terrain is presented. In this scheme, a cut-cell immersed boundary method (CC-IBM) is used to render the complex terrain, defined by a tessellation, on a rectilinear Cartesian ...
Marcos Vanella   +6 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

An analysis of the numerical stability of the immersed boundary method

open access: yesJournal of Computational Physics, 2022
33 pages, 13 ...
Mengjian Hua, Charles S. Peskin
openaire   +2 more sources

An experimental investigation of the recirculation zone formed downstream of a forward facing step [PDF]

open access: yes, 2010
An experimental investigation of the recirculation zone formed downstream of a forward facing step immersed in a turbulent boundary layer has been undertaken using particle image velocimetry.
J. Sheridan   +5 more
core   +1 more source

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

An immersed boundary method based on the lattice Boltzmann approach in three dimensions, with application [PDF]

open access: yes, 2011
The immersed boundary (IB) method originated by Peskin has been popular in modeling and simulating problems involving the interaction of a flexible structure and a viscous incompressible fluid.
王士召   +10 more
core   +1 more source

Injection of Deformable Capsules in a Reservoir: A Systematic Analysis

open access: yesFluids, 2019
Motivated by red blood cell dynamics and injectable capsules for drug delivery, in this paper, a computational study of capsule ejection from a narrow channel into a reservoir is undertaken for a combination of varying deformable capsule sizes and ...
Alessandro Coclite   +1 more
doaj   +1 more source

The immersed boundary method [PDF]

open access: yesActa Numerica, 2002
This paper is concerned with the mathematical structure of the immersed boundary (IB) method, which is intended for the computer simulation of fluid–structure interaction, especially in biological fluid dynamics. The IB formulation of such problems, derived here from the principle of least action, involves both Eulerian and Lagrangian variables ...
openaire   +1 more source

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