Compressible-flow geometric-porosity modeling and spacecraft parachute computation with isogeometric discretization

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dc.citation.journalTitleComputational Mechanicsen_US
dc.contributor.authorKanai, Taroen_US
dc.contributor.authorTakizawa, Kenjien_US
dc.contributor.authorTezduyar, Tayfun E.en_US
dc.contributor.authorTanaka, Tatsuyaen_US
dc.contributor.authorHartmann, Aaronen_US
dc.contributor.orgMechanical Engineeringen_US
dc.date.accessioned2018-09-26T14:52:38Zen_US
dc.date.available2018-09-26T14:52:38Zen_US
dc.date.issued2018en_US
dc.description.abstractOne of the challenges in computational fluid–structure interaction (FSI) analysis of spacecraft parachutes is the “geometric porosity,” a design feature created by the hundreds of gaps and slits that the flow goes through. Because FSI analysis with resolved geometric porosity would be exceedingly time-consuming, accurate geometric-porosity modeling becomes essential. The geometric-porosity model introduced earlier in conjunction with the space–time FSI method enabled successful computational analysis and design studies of the Orion spacecraft parachutes in the incompressible-flow regime. Recently, porosity models and ST computational methods were introduced, in the context of finite element discretization, for compressible-flow aerodynamics of parachutes with geometric porosity. The key new component of the ST computational framework was the compressible-flow ST slip interface method, introduced in conjunction with the compressible-flow ST SUPG method. Here, we integrate these porosity models and ST computational methods with isogeometric discretization. We use quadratic NURBS basis functions in the computations reported. This gives us a parachute shape that is smoother than what we get from a typical finite element discretization. In the flow analysis, the combination of the ST framework, NURBS basis functions, and the SUPG stabilization assures superior computational accuracy. The computations we present for a drogue parachute show the effectiveness of the porosity models, ST computational methods, and the integration with isogeometric discretization.en_US
dc.identifier.citationKanai, Taro, Takizawa, Kenji, Tezduyar, Tayfun E., et al.. "Compressible-flow geometric-porosity modeling and spacecraft parachute computation with isogeometric discretization." <i>Computational Mechanics,</i> (2018) Springer: https://doi.org/10.1007/s00466-018-1595-4.en_US
dc.identifier.digitalKanai2018en_US
dc.identifier.doihttps://doi.org/10.1007/s00466-018-1595-4en_US
dc.identifier.urihttps://hdl.handle.net/1911/102701en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subject.keywordspacecraft parachuteen_US
dc.subject.keywordgeometric-porosity modelingen_US
dc.subject.keywordcompressible-flow space–time SUPG methoden_US
dc.subject.keywordcompressible-flow space–time slip interface methoden_US
dc.subject.keywordisogeometric discretizationen_US
dc.subject.keyworddrogue parachuteen_US
dc.titleCompressible-flow geometric-porosity modeling and spacecraft parachute computation with isogeometric discretizationen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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