A semi-implicit immersed boundary method and its application to viscous mixing

Blais, Bruno; Lassaigne, Manon; Goniva, Christoph; Fradette, Louis; Bertrand, François

doi:10.1016/j.compchemeng.2015.10.019

Cited by 49 publications

(38 citation statements)

References 47 publications

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“…[7] and references therein. Our implementation is strongly based on the works of Patankar et al [12], Blais et al [2] and Municchi and Radl [9,10] and it falls into the category of hybrid fictitious domain-immersed boundary methods with a semi-implicit evaluation of a forcing term (HFDIB).…”

Section: Flow Governing Equations and Inclusion Of Solid Bodiesmentioning

confidence: 99%

“…In this work, we present a new hybrid approach solver to simulate fully coupled particle-laden flows with individual particles spanning multiple domain discretization elements. The solid bodies are included into the computational domain via a hybrid FD-IB (HFDIB) method built based on previous works by Patankar et al [12], Blais et al [2] and Municchi and Radl [9,10]. In particular, the physical movement of fluid in the vicinity of the solid bodies is enforced via a direct forcing term included in the momentum balance.…”

Section: Introductionmentioning

confidence: 99%

“…The forcing term is designed to be directly incorporated in the standard PISO-like CFD algorithms and the overall solution method remains semi-implicit. Furthermore, similarly to Blais et al [2] and Municchi and Radl [9,10] our method is implemented in OpenFOAM [11].…”

Section: Introductionmentioning

confidence: 99%

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Development of CFD Solver for Four-Way Coupled Particle-Laden Flows

Šourek¹,

Isoz²

2020

Topical Problems of Fluid Mechanics 2020

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Computational fluid dynamics (CFD) simulations containing freely moving bodies are still a challenging topic. More so, if the bodies are large enough to affect the fluid flow and distributed densely enough to come in contact both with the boundaries of the computational domain and with each other. In this work, we concentrate on the topic of simulation of (i) irregular bodies with flow-induced movement and contact with computational domain boundaries taken into account, and (ii) bodies entrained by the fluid and coming in contact not only with the domain boundaries but also with each other. The developed modeling approach is based on the hybrid fictitious domain-immersed boundary method extended by the discrete element method. The present contribution is focused on presentation of simulation principles and results of initial benchmark cases.

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Section: Flow Governing Equations and Inclusion Of Solid Bodiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of CFD Solver for Four-Way Coupled Particle-Laden Flows

Šourek¹,

Isoz²

2020

Topical Problems of Fluid Mechanics 2020

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“…This algorithm is time consuming and inconvenient for parallel solution. In the present work, we follow the cell center and vertex flagging method produced by Blais et al [5], which is highly parallelizable. For each cell i of the fixed Eulerian mesh, the numbers of cell vertices N vc,i and cell center N cc,i inside the membrane are counted, as illustrated in Fig.…”

Section: Methodsmentioning

confidence: 99%

Shape Memory of Elastic Capsules Under the Effect of Spontaneous Shape

Gou¹,

Huang²,

Ruan³

et al. 2018

CICP

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Red blood cells can recover their resting shape after having been deformed by shear flow. Their rims are always formed by the same part of the membranes, and the cells are said to have shape memory. Modeled as two-dimensional elastic capsules, their recovery motion and shape memory is studied, mainly focused on the effect of the spontaneous shape. The fluid-structure interaction is modeled using immersed boundary method. Based on the simulations, the resting shapes of capsules are obtained and the area ratio of spontaneous shape is found to play an important role. After remove of shear flow, all capsules can recover their resting shapes, while only capsules with noncircular spontaneous shapes present shape memory. As the spontaneous shape approaches a circle but still noncircular, the capsule spends more time on recovery process. We consider how these capsules deform depending on the membrane bending energy, and find that the relaxation speed is positive correlated to the range of values of dimensionless bending energy. These results may help to identify different spontaneous shapes for capsules especially RBCs through future experiments.

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“…Firstly, in order to study wettability conditions, the first order model of Horgue et al [26] was combined to the Volume-Of-Fluid method. Secondly, Blais et al [27] combined the pressure implicit with splitting of operators (PISO) scheme of OpenFOAM R with an IBM formulation based on volume correction. Although with a similar level of error, the latter method degrades the order from 2 to 1.33 in comparison to the standard PISO scheme on body-fitted mesh.…”

Section: Introductionmentioning

confidence: 99%

A sharp immersed boundary method based on penalization and its application to moving boundaries and turbulent rotating flows

Specklin

Delauré

2018

European Journal of Mechanics - B/Fluids

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This paper presents an Immersed Boundary Method (IBM) for handling flows in the presence of fixed and moving solids with complex geometries. The method is based on a penalisation approach and designed to preserve the sharpness of the immersed boundaries. Corrections of the boundary conditions are implemented at the interface to improve the accuracy of the solution in comparison to first-order methods and avoid the rasterisation issue on Cartesian grids. The current IBM is developed in the OpenFOAM R library (-v 2.2) and its accuracy is first verified against the Wannier flow case. It is then applied to the flow in presence of fixed and moving circular obstacles. The computational results show good agreement with equivalent standard body-conforming simulations and other high order published IBM, and demonstrate as well that improvements can be achieved by correcting the boundary conditions for both velocity and pressure on the interface. Finally, the method is assessed by reference to a realistic engineering application involving rotating flow: a single-phase mixer. In this case, the method is coupled to a DES model for turbulence modelling, and results show again good comparison with experimental results.

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A semi-implicit immersed boundary method and its application to viscous mixing

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Cited by 49 publications

References 47 publications

Development of CFD Solver for Four-Way Coupled Particle-Laden Flows

Development of CFD Solver for Four-Way Coupled Particle-Laden Flows

Shape Memory of Elastic Capsules Under the Effect of Spontaneous Shape

A sharp immersed boundary method based on penalization and its application to moving boundaries and turbulent rotating flows

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