Microscopic design and optimization of hydrodynamically lubricated dissipative interfaces

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buir.contributor.authorÇakal, Berkay Alp
buir.contributor.authorTemizer, İlker
dc.citation.epage178en_US
dc.citation.issueNumber2en_US
dc.citation.spage153en_US
dc.citation.volumeNumber120en_US
dc.contributor.authorÇakal, Berkay Alpen_US
dc.contributor.authorTemizer, İlkeren_US
dc.contributor.authorTerada, K.en_US
dc.contributor.authorKato, J.en_US
dc.date.accessioned2020-02-11T12:02:20Z
dc.date.available2020-02-11T12:02:20Z
dc.date.issued2019
dc.departmentDepartment of Mechanical Engineeringen_US
dc.description.abstractA homogenization‐based topology optimization framework is developed, which can endow hydrodynamically lubricated interfaces with a micro‐texture, to achieve optimal macroscopic responses by addressing both dissipative and nondissipative physics at the interface. With respect to the homogenization aspects of the problem, the thermodynamic consistency of the two‐scale formulation is explicitly analyzed and verified. With respect to the topology optimization aspects, a variational approach to sensitivity analysis is pursued. Subsequently, these are employed in micro‐texture design studies, which address microscopic and macroscopic objectives. The influence of dissipation on the optimization results is demonstrated through extensive numerical investigations, which also highlight the importance of working in a sufficiently flexible design space that can deliver nearly optimal micro‐texture geometries.en_US
dc.description.provenanceSubmitted by Onur Emek (onur.emek@bilkent.edu.tr) on 2020-02-11T12:02:20Z No. of bitstreams: 1 Bilkent-research-paper.pdf: 268963 bytes, checksum: ad2e3a30c8172b573b9662390ed2d3cf (MD5)en
dc.description.provenanceMade available in DSpace on 2020-02-11T12:02:20Z (GMT). No. of bitstreams: 1 Bilkent-research-paper.pdf: 268963 bytes, checksum: ad2e3a30c8172b573b9662390ed2d3cf (MD5) Previous issue date: 2019en
dc.embargo.release2020-10-12
dc.identifier.doi10.1002/nme.6129en_US
dc.identifier.issn0029-5981
dc.identifier.urihttp://hdl.handle.net/11693/53278
dc.language.isoEnglishen_US
dc.publisherJohn Wiley & Sons, Ltd.en_US
dc.relation.isversionofhttps://doi.org/10.1002/nme.6129en_US
dc.source.titleInternational Journal for Numerical Methods in Engineeringen_US
dc.subjectDissipationen_US
dc.subjectHomogenizationen_US
dc.subjectLubricationen_US
dc.subjectOptimizationen_US
dc.subjectTexture designen_US
dc.titleMicroscopic design and optimization of hydrodynamically lubricated dissipative interfacesen_US
dc.typeArticleen_US

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