30 Years of pore network modeling in drying

Vorhauer-Huget, Nicole; Shokri, Nima

doi:10.1080/07373937.2022.2033422

Cited by 3 publications

(3 citation statements)

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“…Besides, statistical information from pore-scale data can be used to validate the upscaled models (Lasseux & Valdés-Parada 2022). Therefore, there is an increasing need for reliable numerical models able to allow pore-scale investigations of flows in porous media coupled with liquid–vapour phase change (Ackermann, Bringedal & Helmig 2021; Vorhauer-Huget & Shokri 2022).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Various numerical models have been developed to investigate evaporation in porous media, including continuum models (Defraeye 2014;Le, Tsotsas & Kharaghani 2018), pore-network models (PNMs) (Surasani, Metzger & Tsotsas 2008;Wu et al 2017;Vorhauer-Huget & Shokri 2022) and lattice Boltzmann models (LBMs) (Qin et al 2019;Zachariah, Panda & Surasani 2019). In addition, some efforts have been made to construct multiscale models by coupling different models, such as an LBM-PNM (Zhao et al 2022) and a PNM-finite volume model (Weishaupt & Helmig 2021).…”

Section: Introductionmentioning

confidence: 99%

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Lattice Boltzmann modelling of isothermal two-component evaporation in porous media

et al. 2023

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A mesoscopic lattice Boltzmann model is implemented for modelling isothermal two-component evaporation in porous media. The model is based on the pseudopotential multiphase model with two components to mimic the phase-change component (e.g. water and its vapour) and the non-condensible component (e.g. dry air), and the cascaded collision operator is used to enhance the numerical performance. The model is first analysed based on Chapman–Enskog expansion and then validated by the theoretical solution of an isothermal diffusive evaporation problem. We then discuss in detail the implementation of wettability based on a geometric function scheme and further validate the model with microfluidic evaporation experiments. We apply the method to simulate the convective evaporation of a dual-porosity medium and investigate the effects of inflow vapour concentration ( ${Y_{vapour,in}}$ ) and contact angle ( $\theta$ ) on the evaporation. Simulation results reproduce the typical transition from the constant evaporation regime (CRP) at large liquid saturation (S) to the receding front period (RFP) at small S, with an intermediate falling rate period in between. The dependence of the average evaporation rates on ${Y_{vapour,in}}$ and $\theta$ during CRP and RFP is investigated. A universal scaling formulation for the evaporation rate during CRP is found with respect to the concentration-related mass transfer number $B_Y$ , contact angle $\theta$ and inflow Reynolds number Re, i.e. $E{R_{CRP}} = {k_3}\ln \left ( {1 + {B_Y}} \right ) {\cdot } \left [ {\ln \left ( {1 + {Re}} \right ) + {k_2}} \right ]\left [ {\cos (\theta ) + {k_1}} \right ]$ , where ${k_1}$ , ${k_2}$ and ${k_3}$ are fitting parameters.

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Section: Introductionmentioning

confidence: 99%