Structure-controlled nanoparticle transport and deposition in graded and uniform open-cell Voronoi foams: A pore-scale Lagrangian study

2026-06-24

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Amir Arsalan Dehghan

Majid Siavashi *

Milad Ramezanpour

DOI：10.1016/j.jtice.2026.106884

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Abstract

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• Uniform and gradient Voronoi-based foams are constructed and numerically analyzed. • Deposition is governed by Brownian transport coupled with particle–wall interactions. • Higher PPI foams yield faster deposition rates and higher nanoparticle retention. • Inlet-side high-PPI gradients enhance early-stage nanoparticle capture efficiency. • NDL , rather than dp or NE1 , controls adhesion in the high-attraction regime.

Keywords:

Eulerian-Lagrangian approach

Pore-scale modeling

Porous media

Deposition ratio

Voronoi Gradient Foam (VGF)

Structure-controlled nanoparticle transport and deposition in graded and uniform open-cell Voronoi foams: A pore-scale Lagrangian study

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