{ "id": "2406.12701", "version": "v1", "published": "2024-06-18T15:14:28.000Z", "updated": "2024-06-18T15:14:28.000Z", "title": "A hybrid reduced-order model for segregated fluid-structure interaction solvers in an ALE approach at high Reynolds number", "authors": [ "Valentin Nkana Ngan", "Giovanni Stabile", "Andrea Mola", "Gianluigi Rozza" ], "categories": [ "physics.flu-dyn", "cs.NA", "math.NA" ], "abstract": "This study introduces a first step for constructing a hybrid reduced-order models (ROMs) for segregated fluid-structure interaction in an Arbitrary Lagrangian-Eulerian (ALE) approach at a high Reynolds number using the Finite Volume Method (FVM). The ROM is driven by proper orthogonal decomposition (POD) with hybrid techniques that combines the classical Galerkin projection and two data-driven methods (radial basis networks , and neural networks/ long short term memory). Results demonstrate the ROM ability to accurately capture the physics of fluid-structure interaction phenomena. This approach is validated through a case study focusing on flow-induced vibration (FIV) of a pitch-plunge airfoil at a high Reynolds number 10000000.", "revisions": [ { "version": "v1", "updated": "2024-06-18T15:14:28.000Z" } ], "analyses": { "keywords": [ "high reynolds number", "hybrid reduced-order model", "segregated fluid-structure interaction solvers", "ale approach", "long short term memory" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }