A level-set immersed boundary method for reactive transport in complex topologies with moving interfaces

Yousefzadeh, M.; Battiato, Ilenia

doi:10.1016/j.jcp.2023.111958

Cited by 5 publications

(1 citation statement)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With appropriate mesh resolution and computational methods, heat transfer in the battery pack can be accurately simulated. However, these high-fidelity simulations generally require significant computational costs [20], and are unlikely to be used as predictive tools for large battery packs that contain thousands of cells.…”

Section: Thermal Runaway In Li-ion Batteriesmentioning

confidence: 99%

Non-intrusive Hybrid Scheme for Multiscale Heat Transfer: Thermal Runaway in a Battery Pack

Yao¹,

Harabin²,

Behandish³

et al. 2023

Preprint

View full text Add to dashboard Cite

Accurate analytical and numerical modeling of multiscale systems is a daunting task. The need to properly resolve spatial and temporal scales spanning multiple orders of magnitude pushes the limits of both our theoretical models as well as our computational capabilities.Rigorous upscaling techniques enable efficient computation while bounding/tracking errors and making informed cost-accuracy tradeoffs. The biggest challenges arise when the applicability conditions for upscaled models break down. Here, we present a non-intrusive two-way coupled hybrid model, applied to thermal runaway in battery packs, that combines fine-and upscaled equations in the same numerical simulation to achieve predictive accuracy while limiting computational costs. First, we develop two methods with different orders of accuracy to enforce continuity at the coupling boundary. Then, we derive weak (i.e., variational) formulations of the fine-scale and upscaled governing equations for finite element (FE) discretization and numerical implementation in FEniCS. We demonstrate that hybrid simulations can accurately predict the average temperature fields within errors bounds determined a priori by homogenization theory. Finally, we demonstrate the computational efficiency of the hybrid algorithm against fine-scale simulations.

show abstract

Section: Thermal Runaway In Li-ion Batteriesmentioning

confidence: 99%

Non-intrusive Hybrid Scheme for Multiscale Heat Transfer: Thermal Runaway in a Battery Pack

Yao¹,

Harabin²,

Behandish³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

A Decade of Volume-Of-Solid Immersed Boundary Solvers: Lessons Learnt and the Road Ahead

Deka,

Chandran,

Natarajan

2024

J Indian Inst Sci

View full text Add to dashboard Cite

Investigation on spraying pressure in etching process of flexible printed circuit board (FPCB) with 18 μm line pitch

Sun,

Yu,

Peng

et al. 2024

Eng. Res. Express

View full text Add to dashboard Cite

In the wet etching process of the flexible printed circuit board (FPCB), to obtain a better etching profile and improve the yield, it is necessary to control the etching spraying pressure and etching time as far as possible. In this paper, a numerical method implemented with the Euler multiphase flow model is proposed to investigate the impact of etching spraying pressure and etching time on the quality of FPCB. The FPCB sample with 18 μm line pitch is manufactured based on the process parameters obtained by simulations. A comparison between the microscopic analysis of actual structures and the cavity profiles predicted by the simulations validates the numerical simulation method. The results of simulations demonstrate that the average pressure on the upper surface of the FPCB is 2,510 Pa. The maximum etching cavity width and lateral etching width are about 10 μm and 1 μm, respectively. The cavity profiles extracted from simulation and experiments are in good agreement except upper left and right with a deviation less than 2 μm.

show abstract

A level-set immersed boundary method for reactive transport in complex topologies with moving interfaces

Cited by 5 publications

References 63 publications

Non-intrusive Hybrid Scheme for Multiscale Heat Transfer: Thermal Runaway in a Battery Pack

Non-intrusive Hybrid Scheme for Multiscale Heat Transfer: Thermal Runaway in a Battery Pack

A Decade of Volume-Of-Solid Immersed Boundary Solvers: Lessons Learnt and the Road Ahead

Investigation on spraying pressure in etching process of flexible printed circuit board (FPCB) with 18 μm line pitch

Contact Info

Product

Resources

About