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ZENODO
Software . 2026
License: http://opensource.org/licenses/MIT
Data sources: ZENODO
ZENODO
Software . 2026
License: https://opensource.org/licenses/MIT
Data sources: Datacite
ZENODO
Software . 2026
License: https://opensource.org/licenses/MIT
Data sources: Datacite
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Integrity Code Series - Week 9 - CUI Coupled Thermohygro-Electrochemical Simulation

integration_instructionsResearch softwarekeyboard_double_arrow_right Software 13 May 2026 English Publisher:Zenodo
Authors: Rocha, Felipe;
Code repository: https://github.com/felipearocha/integrity-code-series-week9-cui

doi: 10.5281/zenodo.20172508 , 10.5281/zenodo.20172509

Integrity Code Series - Week 9 - CUI Coupled Thermohygro-Electrochemical Simulation

Abstract

Three-way coupled physics-first simulator for Corrosion Under Insulation (CUI) on insulated carbon-steel process piping. Couples Fourier heat conduction through the insulation annulus, Philip-de Vries hygrothermal moisture transport driven by capillary and thermal gradients, and Butler-Volmer electrochemical corrosion kinetics at the steel surface. All three fields are advanced together via Strang second-order operator splitting. A DFOS-informed inverse problem recovers moisture source magnitude and location from outer-cladding temperature observations. Anchored to AMPP 2022 (CUI causes ~60% of refinery pipe leaks), API RP 583 critical temperature window (50-175C), and PHMSA Docket 2026-1520 (April 24, 2026). 151 tests, 5 analytical benchmarks.

Keywords

distributed fiber optic sensing, Philip-de Vries, Fourier conduction, CUI, PHMSA, pipeline integrity, Butler-Volmer, corrosion under insulation, thermohygro-electrochemical, inverse problem, API RP 583, DFOS, Strang splitting

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average