Results 11 to 20 of about 210,599 (274)

An Immersed Boundary–Lattice Boltzmann Approach to Study Deformation and Fluid–Structure Interaction of Hollow Sealing Strip

open access: yesEnergies, 2021
A combined immersed boundary–lattice Boltzmann approach is used to simulate the dynamics of the fluid–structure interaction of a hollow sealing strip under the action of pressure difference. Firstly, the multiple relaxation times LBM model, hyper-elastic
Zhe Shen   +4 more
doaj   +1 more source

Numerical Simulations of the NREL Phase VI Wind Turbine with Low-Amplitude Sinusoidal Pitch

open access: yesFluids, 2023
Currently, most wind turbine performance analyses and simulations are performed assuming constant pitch and yaw angles during each rotation. Nevertheless, induced vibration or rotor imbalance can affect the pitch or yaw angle within each rotation.
Amir Akbarzadeh, Iman Borazjani
doaj   +1 more source

A structured adaptive mesh refinement strategy with a sharp interface direct-forcing immersed boundary method for moving boundary problems

open access: yesJournal of Fluid Science and Technology, 2021
We develop a versatile and accurate structured adaptive mesh refinement (S-AMR) strategy with a moving least square sharp-direct forcing immersed boundary method (IBM) for incompressible fluid-structure interaction (FSI) simulations.
Mehdi BADRI GHOMIZAD   +2 more
doaj   +1 more source

Moving immersed boundary method [PDF]

open access: yesInternational Journal for Numerical Methods in Fluids, 2017
SummaryA novel implicit immersed boundary method of high accuracy and efficiency is presented for the simulation of incompressible viscous flow over complex stationary or moving solid boundaries. A boundary force is often introduced in many immersed boundary methods to mimic the presence of solid boundary, such that the overall simulation can be ...
Cai, Shang-Gui   +3 more
openaire   +2 more sources

Removing the Stiffness of Elastic Force from the Immersed Boundary Method for the 2D Stokes Equations [PDF]

open access: yes, 2008
The Immersed Boundary method has evolved into one of the most useful computational methods in studying fluid structure interaction. On the other hand, the Immersed Boundary method is also known to suffer from a severe timestep stability restriction when ...
Hou, Thomas Y., Shi, Zuoqiang
core   +4 more sources

Two-Way Fluid-Structure Interaction Numerical Simulation Method for Offshore Wind Power Based on Immersed Boundary Method

open access: yes发电技术, 2023
In order to study the flow field characteristics and dynamic fluid-structure interaction response of offshore wind turbine during operation process, the concept of integrated analysis of offshore wind power project was introduced and the simulation ...
WU Ronghui   +4 more
doaj   +1 more source

A unified operator splitting approach for multi-scale fluid-particle coupling in the lattice Boltzmann method [PDF]

open access: yes, 2014
A unified framework to derive discrete time-marching schemes for coupling of immersed solid and elastic objects to the lattice Boltzmann method is presented.
Schiller, Ulf D.
core   +2 more sources

Computing viscous flow along a 2D open channel using the immersed interface method

open access: yesEngineering Reports, 2021
We present a numerical method for simulating 2D flow through a channel with deformable walls. The fluid is assumed to be incompressible and viscous. We consider the highly viscous regime, where fluid dynamics are described by the Stokes equations, and ...
Sarah E. Patterson, Anita T. Layton
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

A fast immersed boundary method for external incompressible viscous flows using lattice Green's functions [PDF]

open access: yes, 2016
A new parallel, computationally efficient immersed boundary method for solving three-dimensional, viscous, incompressible flows on unbounded domains is presented.
Colonius, Tim, Liska, Sebastian
core   +2 more sources

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