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dc.contributor.authorKrithivasan, Siddharth
dc.contributor.authorWahal, Siddhant
dc.contributor.authorAnsumali, Santosh
dc.date.accessioned2017-02-21T07:04:09Z-
dc.date.available2017-02-21T07:04:09Z-
dc.date.issued2014
dc.identifier.citationKrithivasan, S; Wahal, S; Ansumali, S, Diffused bounce-back condition and refill algorithm for the lattice Boltzmann method. Physical Review E 2014, 89 (3), 33313 http://dx.doi.org/10.1103/PhysRevE.89.033313en_US
dc.identifier.citationPhysical Review Een_US
dc.identifier.citation89en_US
dc.identifier.citation3en_US
dc.identifier.issn1539-3755
dc.identifier.urihttp://hdl.handle.net/10572/2447-
dc.descriptionRestricted Accessen_US
dc.description.abstractA solid-fluid boundary condition for the lattice Boltzmann (LB) method, which retains the simplicity of the bounce-back method and leads to positive definite populations similar to the diffusive boundary condition, is presented. As a refill algorithm, it is proposed that quasi-equilibrium distributions be used to model distributions at fluid nodes uncovered due to solid movement. The method is tested for flow past an impulsively started cylinder and demonstrates considerable enhancement in the accuracy of the unsteady force calculation at moderate and high Reynolds numbers. Furthermore, via simulations, we show that momentum exchange procedure used in LB to compute forces is not Galilean invariant. A modified momentum exchange procedure is proposed to reduce the errors due to violation of Galilean invariance.en_US
dc.description.uri1550-2376en_US
dc.description.urihttp://dx.doi.org/10.1103/PhysRevE.89.033313en_US
dc.language.isoEnglishen_US
dc.publisherAmerican Physical Societyen_US
dc.rights@American Physical Society, 2014en_US
dc.subjectFluids & Plasmas Physicsen_US
dc.subjectMathematical Physicsen_US
dc.subjectParticulate Suspensionsen_US
dc.subjectBoundary-Conditionen_US
dc.subjectSimulationsen_US
dc.subjectEquationen_US
dc.subjectFlowen_US
dc.subjectModelsen_US
dc.titleDiffused bounce-back condition and refill algorithm for the lattice Boltzmann methoden_US
dc.typeArticleen_US
Appears in Collections:Research Articles (Santosh Ansumali)

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