Open Access Repository

Immersed Boundary-Finite Difference Lattice Boltzmann method through fluid-structure interaction for viscoplastic fluids

Kefayati, GHR ORCID: 0000-0001-9757-8260, Tang, H and Chan, A ORCID: 0000-0003-0042-8448 2018 , 'Immersed Boundary-Finite Difference Lattice Boltzmann method through fluid-structure interaction for viscoplastic fluids' , Journal of Fluids and Structures, vol. 83 , pp. 238-258 , doi: 10.1016/j.jfluidstructs.2018.09.007.

Full text not available from this repository.

Abstract

In this paper, an immersed boundary-finite difference lattice Boltzmann is proposed to simulate fluid–structure interaction of viscoplastic fluids. For simulation of the viscoplastic fluids, the Bingham model without any regularization of the constitutive law was applied. This method is the combination of Finite Difference Lattice Boltzmann for modeling the fluid motion and the effect of the solid structure is studied by the immersed boundary method (IBM). The accuracy of the method for the simulation of viscoplastic fluids has been validated in a lid-driven cavity. In addition, the fluid–structure interaction part was validated by a lid-driven cavity with an elastic bottom wall. The fluid–structure interaction in the presence of viscoplastic fluids for rigid and elastic cases have been studied in two different examples. To study the fluid–structure interaction for a rigid body with the viscoplastic fluid, a rosette-shaped in a lid-driven cavity has been studied. In the case of the elastic bodies, the lid-driven cavity filled with viscoplastic fluids by the elastic bottom wall is simulated. In these studies, the yielded/unyielded sections and streamlines have been depicted for high Rayleigh numbers. The effects of the unyielded development on the elastic/deformable parts are presented.

Item Type: Article
Authors/Creators:Kefayati, GHR and Tang, H and Chan, A
Keywords: viscoplastic fluid, IBM, FDLBM, lid-driven cavity, rosette-shaped
Journal or Publication Title: Journal of Fluids and Structures
Publisher: Elsevier Science Ltd
ISSN: 0889-9746
DOI / ID Number: 10.1016/j.jfluidstructs.2018.09.007
Copyright Information:

©2018 Elsevier Ltd. All rights reserved.

Related URLs:
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page
TOP