An fpga cached sparse matrix vector product (spmv) for unstructured computational fluid dynamics simulations

G Oyarzun, D Peyrolon, C Alvarez… - arXiv preprint arXiv …, 2021 - arxiv.org
Field Programmable Gate Arrays generate algorithmic specific architectures that improve the
code's FLOP per watt ratio. Such devices are re-gaining interest due to the rise of new tools …

Large‐eddy simulation of turbulent oscillatory flow over three‐dimensional transient vortex ripple geometries in quasi‐equilibrium

IA Chalmoukis, AA Dimas… - Journal of Geophysical …, 2020 - Wiley Online Library
Vortex ripples induced by oscillatory flow display straight crests at equilibrium, but they
develop transient three‐dimensional (3‐D) bedform geometries when transitioning from one …

Morphodynamics of vortex ripple creation under constant and changing oscillatory flow conditions

GA Leftheriotis, AA Dimas - Coastal Engineering, 2022 - Elsevier
The morphodynamics of orbital vortex ripples due to oscillatory flow and induced sediment
transport was studied numerically. The methodology was based on large-eddy simulations …

[HTML][HTML] High-efficiency computation for electromagnetic forming process: An explicit-implicit GPU approach

Y Pei, D Tang, S Li, X Cao, H Yang, Y Cai, X Cui - Iscience, 2024 - cell.com
Low computational efficiency is one of the crucial challenges in electromagnetic forming
process simulation. However, the huge gap in switching from the electromagnetic field to …

Large-eddy simulation of the turbulent oscillatory flow around an artificial reef

GA Leftheriotis, IA Sibetheros, AA Dimas - Ocean Engineering, 2025 - Elsevier
In the present work, an in-house large-eddy simulation model was employed to study the
three-dimensional turbulent flow field induced by a planar oscillatory flow around a single …

Developing a CPU-GPU LES Parallel Solver for Canonical Turbulent Flows

N ZendehAli, H Emdad, O Abouali - Iranian Journal of Science and …, 2023 - Springer
Parallel programming on CPU and GPU has accelerated CFD simulations. Recently a fast
solver of incompressible canonical flow has been released as open-source code called …

Performance assessment of cuda and openacc in large scale combustion simulations

G Oyarzun, D Mira, G Houzeaux - arXiv preprint arXiv:2107.11541, 2021 - arxiv.org
GPUs have climbed up to the top of supercomputer systems making life harder to many
legacy scientific codes. Nowadays, many recipes are being used in such code's portability …

A Hybrid Parallel Numerical Model for Wave-Induced Free-Surface Flow

GA Leftheriotis, IA Chalmoukis, G Oyarzun, AA Dimas - Fluids, 2021 - mdpi.com
An advanced numerical model is presented for the simulation of wave-induced free-surface
flow, utilizing an efficient hybrid parallel implementation. The model is based on the solution …

[HTML][HTML] An adaptation of the immersed boundary method for turbulent flows over three-dimensional coastal/fluvial beds

AA Dimas, IA Chalmoukis - Applied Mathematical Modelling, 2020 - Elsevier
A modification of the immersed boundary method is presented, using the discrete-forcing
concept, for the large-eddy simulation of turbulent flows over coastal/fluvial beds. The …

Large-Eddy Simulation of Wave Attenuation and Breaking on a Beach with Coastal Vegetation Modelled as Porous Medium

IA Chalmoukis, GA Leftheriotis, AA Dimas - Journal of Marine Science …, 2023 - mdpi.com
Erosion and flooding are the main threats for most coastal regions. Nature-based solutions,
such as coastal vegetation (CV) fields, have received significant attention in recent years …