Immersed boundary method for multiphase transport phenomena

Abstract

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.

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

“…Regardless, the developed PP model investigated here is highly valuable for meso/-macro-pore particles where intraparticle convection could play a key role. However, similar models where the particle are not resolved, thus utilizing a hexahedral grid, yet a no-slip flow boundary condition was applied on their surface, restricting intraparticle convection, have been developed in the literature. ,− The study of Das et al is a great example of this . Consequently, depending on the CFD model requirements and the experimental application they are applied to, non-resolved models with Cartesian grids offer a wide flexibility, enabling both the study of impermeable solid particles and of multi-pore-scale particles, with significantly reduced computational resources.…”

On the collision of a moving droplet against a moving particle with heat transfer

“…Recently, the lattice Boltzmann method (LBM) has been proven to be a popular numerical method in multicomponent flows. And the immersed boundary method (IBM) is widely used in moving boundary problems [29]. Therefore, we report an LBM coupled with a modified IBM to simulate droplets impacting moving particles with heat transfer.…”

Pore-Scale Simulation of the Interaction between a Single Water Droplet and a Hydrophobic Wire Mesh Screen in Diesel

“…On the other hand, numerical methods and in particular pore-scale simulations of two-phase flows showed an accurate computation of the flow fields in porous media [36][37][38][39][40]. Kuipers et al [41] simulated the impact of a droplet on a wettable fibrous structure using the volume of fluid method (VoF) [42] coupled with the immersed boundary method (IBM) [43]. Despite the VoF method being applied and validated in the application of modeling twophase flow in porous media, it produces non-physical velocities at the interface called "spurious currents" [39,[44][45][46].…”