Numerical investigation and reduced order model of mixed convection at a backward facing step with a rotating cylinder subjected to nanofluid

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dc.contributor.authorSelimefendigil F.
dc.contributor.authorÖztop H.F.
dc.date.accessioned2024-07-22T08:13:55Z
dc.date.available2024-07-22T08:13:55Z
dc.date.issued2015
dc.description.abstractIn the present study, numerical investigation of mixed convection at a backward facing step with a rotating cylinder subjected to nanofluid is conducted and a reduced order model of the system is obtained by using the proper orthogonal decomposition method. The governing equations are solved with a finite element based commercial solver. The effects of various pertinent parameters, Reynolds number, cylinder angular velocity and nanofluid volume fraction on the fluid flow and heat transfer characteristics are numerically studied. It is observed that flow field and thermal patterns change for different parameters and heat transfer enhancement is obtained for some combinations of parameters. Length averaged Nusselt number plots indicate that there is almost a linear increase in the heat transfer enhancement with increasing Reynolds number and nanoparticle volume fraction. Heat transfer enhancement is obtained for cylinder angular velocities of Ω. = -. 4.5 and Ω. = 1.5. A reduced order model of the system with proper orthogonal decomposition method is obtained and it provides accurate results when compared to high fidelity CFD model of the system. © 2014 Elsevier Ltd.
dc.identifier.DOI-ID10.1016/j.compfluid.2014.12.007
dc.identifier.issn00457930
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/16448
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectAngular velocity
dc.subjectComputational fluid dynamics
dc.subjectCylinders (shapes)
dc.subjectFacings
dc.subjectHeat transfer coefficients
dc.subjectMixed convection
dc.subjectNumerical methods
dc.subjectPrincipal component analysis
dc.subjectReynolds number
dc.subjectVolume fraction
dc.subjectWakes
dc.subjectBackward facing step
dc.subjectFluid flow and heat transfers
dc.subjectHeat Transfer enhancement
dc.subjectNanofluids
dc.subjectNanoparticle volume fractions
dc.subjectNumerical investigations
dc.subjectProper orthogonal decomposition method
dc.subjectRotating cylinders
dc.subjectNanofluidics
dc.titleNumerical investigation and reduced order model of mixed convection at a backward facing step with a rotating cylinder subjected to nanofluid
dc.typeArticle

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