Results 61 to 70 of about 13,611 (225)

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. Matrix generation, involving tasks such numerical integration and assembly, is performed on CPUs.
Piscaglia, Federico, Ghioldi, Federico
openaire   +3 more sources

Methodological Approach for Particle Transport: Analyzing Influential Factors and Comparing Simulation Software

open access: yesChemie Ingenieur Technik, EarlyView.
This study determines the dust filtration behavior of venting tubes in automotive headlights. Numerical simulations using Meshfree and STAR‐CCM+ and suitable experiments were conducted to analyze the airflow field, the particle transport, and the filtration efficiency.
Cornelia Müssig   +4 more
wiley   +1 more source

Numerical Study of The Effect of Penstock Dimensions on a Micro-hydro System using a Computational Fluid Dynamics Approach

open access: yesInternational Journal of Renewable Energy Development, 2022
The performance of a micro-hydro system needs always to be improved so that the electrical power produced can be more optimal. This article aims to study numerically the effect of penstock dimensions on the potential of electrical energy in a micro-hydro
Yoga Satria Putra   +2 more
doaj   +1 more source

Comparison of modelling approaches for liquid fluidized beds

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study presents a comparison of three promising numerical models for the detailed simulation of liquid–solid fluidized bed. These models differ in their treatment of the solid phase, ranging from treating each particle individually to treating the collection of particles as a continuum.
Andreu Bernad‐Serra   +3 more
wiley   +1 more source

Compressibility Effects on Turbulent Heat Transfer of Natural Convection in a Square Cavity

open access: yesIndonesian Journal of Applied Physics, 2023
Heat transfer in turbulent flows is one of the essential topics in power plants and thermal-based engineering. This study aims to analyze the effects of density changes due to heat transfer in a turbulent environment—which is usually neglected because it
Rida Siti Nur'aini Mahmudah   +2 more
doaj   +1 more source

Comparative assessment of volume‐of‐fluid (VOF) multiphase solvers for viscoplastic flow over grooved patterned surfaces

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Accurately simulating multiphase flows at low capillary numbers remains challenging due to spurious currents and interface discretization errors. We present a systematic comparison of four volume‐of‐fluid (VOF) solvers within the OpenFOAM framework for pressure‐driven Poiseuille–Bingham flow over grooved surfaces: interFoam with classical ...
Amir Joulaei   +2 more
wiley   +1 more source

UNH-RVAT-2D-OpenFOAM: v1.0.0-SST

open access: yes, 2016
<p>Version 1.0.0 using OpenFOAM 2.3.x and the kOmegaSST model.</p ...
Pete Bachant
core   +1 more source

Inter‐Material Transfer Learning for Accelerated Nanofluid Heat Transfer Prediction: A Machine Learning Approach for Energy Systems

open access: yesEnergy Science &Engineering, EarlyView.
This study presents an inter‐material transfer learning framework for nanofluid heat transfer prediction in energy systems. By leveraging knowledge from Al2O3‐water data, the model accurately predicts hybrid Al2O3‐TiO2 nanofluid performance with only 20 simulations, achieving R2 = 0.985 and reducing computational requirements by 78. ABSTRACT This paper
Soumaya Hadj Salah   +2 more
wiley   +1 more source

The problem-oriented library SOWFA for solving the applied tasks of wind energy

open access: yesТруды Института системного программирования РАН, 2019
The article discusses the possibilities of the open source library SOWFA. The problem-oriented library, operating as part of the open source package OpenFOAM v.2.4.0, is intended for solving wind energy’s problems.
M. V. Kraposhin, S. V. Strijhak
doaj   +1 more source

Numerical Investigation of Methane Transport Within and Around Evolving Cracks

open access: yesEnergy Science &Engineering, EarlyView.
A validated model shows that natural gas leakage induces soil deformation and forms three key cracks. When diffusion is low, methane moves mainly along the primary crack, demonstrating how natural fractures reshape pathways and significantly enhance methane migration.
Le Wang   +3 more
wiley   +1 more source

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