Application of central-weighted essentially non-oscillatory finite-volume interface-capturing schemes for modeling cavitation induced by an underwater explosion

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dc.contributor.authorAdebayo, Ebenezer Mayowa
dc.contributor.authorTsoutsanis, Panagiotis
dc.contributor.authorJenkins, Karl W.
dc.date.accessioned2024-03-14T15:51:37Z
dc.date.available2024-03-14T15:51:37Z
dc.date.issued2024-01-29
dc.description.abstractCavitation resulting from underwater explosions in compressible multiphase or multicomponent flows presents significant challenges due to the dynamic nature of shock–cavitation–structure interactions, as well as the complex and discontinuous nature of the involved interfaces. Achieving accurate resolution of interfaces between different phases or components, in the presence of shocks, cavitating regions, and structural interactions, is crucial for modeling such problems. Furthermore, pressure convergence in simulations involving shock–cavitation–structure interactions requires accurate algorithms. In this research paper, we employ the diffuse interface method, also known as the interface-capturing scheme, to investigate cavitation in various underwater explosion test cases near different surfaces: a free surface and a rigid surface. The simulations are conducted using the unstructured compressible Navier–Stokes (UCNS3D) finite-volume framework employing central-weighted essentially non-oscillatory (CWENO) reconstruction schemes, utilizing the five-equation diffuse interface family of methods. Quantitative comparisons are made between the performance of both models. Additionally, we examine the effects of cavitation as a secondary loading source on structures, and evaluate the ability of the CWENO schemes to accurately capture and resolve material interfaces between fluids with minimal numerical dissipation or smearing. The results are compared with existing high-order methods and experimental data, where possible, to demonstrate the robustness of the CWENO schemes in simulating cavitation bubble dynamics, as well as their limitations within the current implementation of interface capturing.en_UK
dc.description.sponsorshipThe authors acknowledge the computing time at Cranfield University Delta2 HPC facility.en_UK
dc.identifier.citationAdebayo EM, Tsoutsanis P, Jenkins KW. (2024) Application of central-weighted essentially non-oscillatory finite-volume interface-capturing schemes for modeling cavitation induced by an underwater explosion. Fluids, Volume 9, Issue 2, January 2024, Article number 33en_UK
dc.identifier.issn2311-5521
dc.identifier.urihttps://doi.org/10.3390/fluids9020033
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/21002
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectdiffuse interface modelsen_UK
dc.subjecthigh-order methodsen_UK
dc.subjectfinite volumeen_UK
dc.subjectcavitationen_UK
dc.subjectCWENOen_UK
dc.subjectunderwater explosionen_UK
dc.titleApplication of central-weighted essentially non-oscillatory finite-volume interface-capturing schemes for modeling cavitation induced by an underwater explosionen_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-01-25

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