An adaptive isogeometric analysis approach to elasto-capillary fluid-solid interaction
| Autor: | T. H. B. Demont, E.H. van Brummelen, G. J. van Zwieten |
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| Přispěvatelé: | Energy Technology, Center for Analysis, Scientific Computing & Appl., EIRES Eng. for Sustainable Energy Systems |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Numerical Analysis
fluid-solid interaction Computer science Applied Mathematics Computation Interface (computing) General Engineering Process (computing) Isogeometric analysis adaptive refinement elasto-capillarity Physics::Fluid Dynamics Continuation isogeometric analysis Navier-Stokes-Cahn-Hilliard equations Robustness (computer science) A priori and a posteriori Applied mathematics Elasto-capillarity |
| Zdroj: | International Journal for Numerical Methods in Engineering, 122(19), 5331-5352. Wiley |
| ISSN: | 0029-5981 |
| Popis: | We present an adaptive isogeometric-analysis approach to elasto-capillary fluid-solid interaction (FSI), based on a diffuse-interface model for the binary fluid and an Arbitrary-Lagrangian-Eulerian formulation for the FSI problem. We consider approximations constructed from adaptive high-regularity truncated hierarchical splines, as employed in the isogeometric analysis (IGA) paradigm. The considered adaptive strategy comprises a two-level hierarchical a posteriori error estimate. The hierarchical a posteriori error estimate directs a support-based refinement procedure. To attain robustness of the solution procedure for the aggregated binary-fluid-solid-interaction problem, we apply a fully monolithic solution procedure and we introduce a continuation process in which the diffuse interface of the binary fluid is artificially enlarged on the coarsest levels of the adaptive-refinement procedure. To assess the capability of the presented adaptive IGA method for elasto-capillary FSI, we conduct numerical computations for a configuration pertaining to a sessile droplet on a soft solid substrate. |
| Databáze: | OpenAIRE |
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