FastSVD-ML–ROM: A reduced-order modeling framework based on machine learning for real-time applications

GI Drakoulas, TV Gortsas, GC Bourantas… - Computer Methods in …, 2023 - Elsevier
Digital twins have emerged as a key technology for optimizing the performance of
engineering products and systems. High-fidelity numerical simulations constitute the …

[HTML][HTML] A three-phase model based on boundary element method for simulation of chloride diffusion in concrete

W Liang, Z Chen, J Yu - Case Studies in Construction Materials, 2024 - Elsevier
Chloride-induced corrosion of steel reinforcements has been identified as one of the main
causes of deterioration of concrete structures. A feasible numerical method is required to …

An accelerated boundary element method via cross approximation of integral kernels for large‐scale cathodic protection problems

TV Gortsas, SV Tsinopoulos… - Computer‐Aided Civil …, 2022 - Wiley Online Library
The boundary element method (BEM), combined with hierarchical matrices (HM) and
adaptive cross approximation (ACA) techniques, is a powerful tool for treating large‐scale …

Evaluation of the corrosion depth of double bottom longitudinal girder on aging bulk carriers

Š Ivošević, N Kovač, N Momčilović… - Journal of marine science …, 2022 - mdpi.com
The longitudinal girder (LG) between fuel oil tanks (FOT) and water ballast tanks in the
double bottoms of ships represent critical structural parts whose watertight nature could be …

A local domain boundary element method for solving the nonlinear fisher KPP diffusion-reaction equation

TV Gortsas, SV Tsinopoulos, D Polyzos - Engineering Analysis with …, 2022 - Elsevier
The nonlinear Fisher-KPP diffusion-reaction equation has been successfully employed to
model competitive processes in biological populations. A robust numerical method for …

Coating damage detection of vessels using machine learning-based underwater electric field

Y Hu, X Wang, S Wang, W Liu - IEEE Sensors Journal, 2023 - ieeexplore.ieee.org
There has been extensive research on corrosion electric fields because of their special
characteristics. There are apparent distribution characteristics corresponding to different …

An analytical four-layer horizontal electric current dipole model for analysing underwater electric potential in shallow seawater

M Woloszyn, K Buszman, T Rutkowski, J Tarnawski… - Scientific Reports, 2022 - nature.com
The paper presents a new analytical four-layer (air–water–bottom–non-conductive layer)
horizontal electric dipole model which allows an accurate approximation of ship's …

Modelling of 3D periodic cathodic protection problems in reinforced concrete structures with accelerated boundary element method

DT Kalovelonis, TV Gortsas, SV Tsinopoulos - Construction and Building …, 2023 - Elsevier
The steel used for concrete reinforcement exhibits either active or passive electrochemical
behavior. As long as the concrete environment remains highly alkaline, the steel remains …

Accelerated boundary element method for direct current interference of cathodic protections systems

DT Kalovelonis, TV Gortsas, SV Tsinopoulos… - Ocean …, 2022 - Elsevier
The use of cathodic protection (CP) is a widely used practice to mitigate the corrosion of
metals. In certain circumstances, stray-current induced corrosion can occur on a structure …

Mixed electric field of multi-shaft ship based on oxygen mass transfer process under turbulent conditions

X Wang, S Wang, Y Hu, Y Tong - Electronics, 2022 - mdpi.com
The theoretical basis for a multi-physics coupling modeling involving a turbulence flow field
and a ship's electric field was analyzed using the principles of electrochemistry and …