Results 21 to 30 of about 54,493 (265)

GPU Acceleration of CFD Simulations in OpenFOAM

open access: yesAerospace, 2023
We introduce algorithmic advancements designed to expedite simulations in OpenFOAM using GPUs. These developments include the following. (a) The amgx4Foam library, which connects the open-source AmgX library from NVIDIA to OpenFOAM.
Federico Piscaglia, Federico Ghioldi
doaj   +1 more source

Single and multiphase CFD approaches for modelling partially baffled stirred vessels: comparison of experimental data with numerical predictions [PDF]

open access: yes, 2007
Whilst the use of CFD to study mixing vessels is now common-place, there are still many specialised applications that are yet to be addressed. Here we present CFD and PIV results for a hydrodynamic study of a partially baffled vessel with a free surface.
Fletcher, David F.   +4 more
core   +1 more source

Optimized approach for CFD simulations of HVAC systems with grill air diffusers

open access: yes, 2023
A proper CFD simulation of air distribution within a room requires the correct representation of inlet conditions from ventilation grids. Those elements are usually characterized by blades with a certain inclination angle or even by a curvature, whose ...
Oliet Casasayas, Carles   +3 more
core   +1 more source

Transient cooling of two circular cylinders arranged in Tandem and bounded by an adiabatic wall

open access: yesJournal of Mechanical Engineering and Sciences, 2021
Parametric study is carried out on the transient cooling process of two circular cylinders in tandem arrangement for a specified period of time. Transient analysis of conjugate (conduction and convection) heat dissipation from two
N. H. Saeid   +3 more
doaj  

Comparison of Newtonian and Non-newtonian Fluid Models in Blood Flow Simulation in Patients With Intracranial Arterial Stenosis

open access: yesFrontiers in Physiology, 2021
BackgroundNewtonian fluid model has been commonly applied in simulating cerebral blood flow in intracranial atherosclerotic stenosis (ICAS) cases using computational fluid dynamics (CFD) modeling, while blood is a shear-thinning non-Newtonian fluid.
Haipeng Liu   +13 more
doaj   +1 more source

Adaptive Multi-Grid Methods for Parallel CFD Applications [PDF]

open access: yes, 2014
Computational fluid dynamic (CFD) computations are memory and time intensive and need to be executed in parallel for larger computational domains. In order to produce physical accurate solutions, adaptive grid setups have to be chosen as the memory and ...
Mundani, Ralf-Peter   +2 more
core   +1 more source

Recent Efforts for Credible CFD Simulations in China

open access: yesModelling and Simulation in Engineering, 2011
In this paper some recent efforts for credible computational fluid dynamics (CFD) simulations in China are reviewed. The most important effort is that, following similar activities in the West such as ECARP and AIAA Drag Prediction Workshops, a series of
Li Li, Bai Wen, Liang Yihua
doaj   +1 more source

Modeling Turbulent Flow in Stirred Tanks with CFD: The Influence of the Modeling Approach, Turbulence Model and Numerical Scheme [PDF]

open access: yes, 2004
Single phase turbulent flow in a tank stirred by a down- and an up-pumping pitched blade turbine has been simulated using CFD. The effect of the modeling approach, discretization scheme and turbulence model on mean velocities, turbulent kinetic energy ...
Fletcher, David F.   +2 more
core   +1 more source

PHANTOM project: development and validation of the pipeline from MRA acquisition to MRA simulations

open access: yesESAIM: Proceedings and Surveys, 2016
The aim of this project is to validate the Vivabrain pipeline with a physical phantom from real MRI acquisition to MRI simulations through image segmentation and computational fluid dynamics (CFD) simulations. For that purpose, we set up three comparison
Ancel Alexandre   +4 more
doaj   +1 more source

Optimization using surrogate models and partially converged computational fluid dynamics simulations [PDF]

open access: yes, 2006
Efficient methods for global aerodynamic optimization using computational fluid dynamics simulations should aim to reduce both the time taken to evaluate design concepts and the number of evaluations needed for optimization.
Alexander I.J. Forrester   +5 more
core   +1 more source

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