A sharp-interface Immersed Boundary Method to simulate convective and conjugate heat transfer through highly complex periodic porous structures

Das, Soumen; Panda, A.; Deen, NG Niels; Kuipers, J.A.M.

doi:10.1016/j.ces.2018.04.061

Cited by 33 publications

(6 citation statements)

References 34 publications

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“…We remark that the direct-forcing IB projection method for conjugate heat transfer [7,26] in the TFSI problems deserves further investigation, although we did not study in this paper yet. Note that a similar idea proposed in this paper can be slightly modified to adapt to the TFSI problems with an immersed solid body governed by some motion equations.…”

Section: Discussionmentioning

confidence: 97%

A Direct-Forcing Immersed Boundary Projection Method for Thermal Fluid-Solid Interaction Problems

You¹,

null²,

Yang³

2023

AAMM

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In this paper, we develop a direct-forcing immersed boundary projection method for simulating the dynamics in thermal fluid-solid interaction problems. The underlying idea of the method is that we treat the solid as made of fluid and introduce two virtual forcing terms. First, a virtual fluid force distributed only on the solid region is appended to the momentum equation to make the region behave like a real solid body and satisfy the prescribed velocity. Second, a virtual heat source located inside the solid region near the boundary is added to the energy transport equation to impose the thermal boundary condition on the solid boundary. We take the implicit second-order backward differentiation to discretize the time variable and employ the Choi-Moin projection scheme to split the coupled system. As for spatial discretization, second-order centered differences over a staggered Cartesian grid are used on the entire domain. The advantages of this method are its conceptual simplicity and ease of implementation. Numerical experiments are performed to demonstrate the high performance of the proposed method. Convergence tests show that the spatial convergence rates of all unknowns seem to be super-linear in the 1-norm and 2-norm while less than linear in the maximum norm.

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Section: Discussionmentioning

confidence: 97%

A Direct-Forcing Immersed Boundary Projection Method for Thermal Fluid-Solid Interaction Problems

You¹,

null²,

Yang³

2023

AAMM

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“…This enhancement was further flattened at a high particle Reynolds number of Re = 500, which indicated that conjugate heat transfer had little effect on the overall wall-to-bed heat transfer. Further, this method was extended to simulate flow through a three-dimensional highly complex random solid foam structure under the CHT boundary condition (Das et al 2018). The conductivity ratio was chosen as λ s / λ f = 10, 100, and 1000.…”

Section: Conjugate Heat Transfermentioning

confidence: 99%

Immersed boundary method for multiphase transport phenomena

Wei

Zhang

Luo

et al. 2020

Reviews in Chemical Engineering

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Multiphase flows with momentum, heat, and mass transfer exist widely in a variety of industrial applications. With the rapid development of numerical algorithms and computer capacity, advanced numerical simulation has become a promising tool in investigating multiphase transport problems. Immersed boundary (IB) method has recently emerged as such a popular interface capturing method for efficient simulations of multiphase flows, and significant achievements have been obtained. In this review, we attempt to give an overview of recent progresses on IB method for multiphase transport phenomena. Firstly, the governing equations, the basic ideas, and different boundary conditions for the IB methods are introduced. This is followed by numerical strategies, from which the IB methods are classified into two types, namely the artificial boundary method and the authentic boundary method. Discussions on the implementation of various boundary conditions at the interphase surface with momentum, heat, and mass transfer for different IB methods are then presented, together with a summary. Then, the state-of-the-art applications of IB methods to multiphase flows, including the isothermal flows, the heat transfer flows, and the mass transfer problems are outlined, with particular emphasis on the latter two topics. Finally, the conclusions and future challenges are identified.

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“…By ranging the level of macro-porosity, they identified that a critical macro-porosity exists between 0.6 and 0.7, which changes the importance of the surface friction drag and the body pressure drag within the particle . A key example of dual-scale particles with large macro-porosities is open-foam particles, which exhibit macro-porosities, ε macro , Figure , above 0.8, with macro-pore diameters in the order of mm. − Due to the large macro-porosities of these structures, intraparticle convection plays a prominent role in the hydrodynamic profile of the bed, reducing the pressure drop, increasing the distribution of residence times, and reducing the heat transfer rate between fluid and solid. ,− For the former, Solsvik and Jakobsen investigated the impact of dual-porosity distribution, i.e., 1 nm micro-pores, 15 nm meso-pores, and total intraparticle porosity ≤0.5, on the reactor’s performance, using methanol synthesis as a test reaction . Their results revealed that reactor’s performance is sensitive to the dual-scale porosity distribution as it is the primary driving factor of intraparticle diffusion rate .…”

Section: Introductionmentioning

confidence: 99%

Quantifying the Impact of Intraparticle Convection within Fixed Beds Formed by Catalytic Particles with Low Macro-Porosities

Kyrimis,

Potter,

Raja

et al. 2023

ACS Eng. Au

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Computational fluid dynamics (CFD) modeling plays a pivotal role in optimizing fixed bed catalytic chemical reactors to enhance performance but must accurately capture the various length-and time-scales that underpin the complex particle−fluid interactions. Within catalytic particles, a range of pore sizes exist, with micro-pore scales enhancing the active surface area for increased reactivity and macro-pore scales enhancing intraparticle heat and mass transfer through intraparticle convection. Existing particle-resolved CFD models primarily approach such dual-scale particles with low intraparticle macro-porosities as purely solid. Consequently, intraparticle phenomena associated with intraparticle convection are neglected, and their impact in the full bed scale is not understood. This study presents a porous particle CFD model, whereby individual particles are defined through two distinct porosity terms, a macro-porosity term responsible for the particle's hydrodynamic profile and a micro-porosity term responsible for diffusion and reaction. By comparing the flow profiles through full beds formed by porous and solid particles, the impact of intraparticle convection on mass and heat transfer, as well as on diffusion and reaction, was investigated.

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A sharp-interface Immersed Boundary Method to simulate convective and conjugate heat transfer through highly complex periodic porous structures

Cited by 33 publications

References 34 publications

A Direct-Forcing Immersed Boundary Projection Method for Thermal Fluid-Solid Interaction Problems

A Direct-Forcing Immersed Boundary Projection Method for Thermal Fluid-Solid Interaction Problems

Immersed boundary method for multiphase transport phenomena

Quantifying the Impact of Intraparticle Convection within Fixed Beds Formed by Catalytic Particles with Low Macro-Porosities

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