Fast Spontaneous Transport of a Non-wetting Fluid in a Disordered Nanoporous Medium

Borman, V. D.; Tronin, I. V.

doi:10.1007/s11242-021-01638-7

Cited by 4 publications

(6 citation statements)

References 40 publications

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“…In order to investigate the influence of the loading rate and pore size distribution on the energy absorption characteristics of NEAS, MD simulation calculations were conducted for two models of DNEAS and SNEAS under different loading rates. The NEAS, consisting of pairs of CNTs with pore sizes ranging from CNT (6,6) to CNT (22,22), was simulated at a system temperature of 300 K and loading rates varying from 1 to 100 m/s. The critical pore difference, critical infiltration pressure, and total energy absorbed of the system are analyzed.…”

Section: Results and Analysismentioning

confidence: 99%

“…32−34 To ensure visibility of the energy-absorbing platform in the system, the volume of carbon nanotubes was kept constant at 12.786 nm 3 for both calculation and simulation. The pore sizes of carbon nanotubes range from CNT (6,6) to CNT (22,22). The MD simulations are carried out using LAMMPS, 35 which is a classical molecular dynamics simulation software from Sandia National Laboratory.…”

Section: Model and Methodsmentioning

confidence: 99%

“…A nanofluidic Energy Absorption System (NEAS) is composed of a nanoporous medium and a functional liquid . Due to its advantages such as small size, lightweight, and reusability, it has received widespread attention from scholars in various fields. − The energy absorption mechanism of most conventional energy-absorbing materials is converting mechanical energy into plastic properties or surface energy . For the NEAS, it converts mechanical energy into potential energy inside the system and thermal energy dissipated during the infiltration process. , Nanofluidic systems have been demonstrated to have great potential for applications, including energy dissipation/absorption, energy trapping, actuation, and energy harvesting.…”

Section: Introductionmentioning

confidence: 99%

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Study on the Influence of Loading Rate on the Cascade Characteristics of Nanofluidic Systems

Zhang,

Liu,

Xiao

et al. 2024

Energy Fuels

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The energy absorption density of the nanofluidic energy absorption system (NEAS) is much higher than that of traditional energy-absorbing materials. An NEAS based on different pore size combinations may exhibit cascade characteristics, which can achieve energy absorption of different grades. In this work, two NEAS models based on carbon nanotubes are constructed, which are DNEAS and SNEAS. In DNEAS, two tubes with both ends immersed in a water reservoir are used. In SNEAS, two tubes are connected end to end, with the end of the bigger tube immersed in the water reservoir. The effects of loading rate coupled to pore size on the infiltration processes of water molecules into two models were investigated. The fitting correlations between the critical pore size difference and temperature were established. It has been observed that an increase in loading rate will transform a single-stage system into a multistage system that displays cascade characteristics. The critical pore size difference for the system to display cascade characteristics decreases with an increase in the loading rate. In DNEAS, the infiltration processes of the large and small tubes are independent of each other, and the effect of the loading rate on energy absorption characteristics is the superposition of that of the corresponding single tube NEAS. In SNEAS, the water molecules fill up the bottom tube before infiltrating the top tube. The influence of the effective viscosity change caused by loading rate on infiltration pressure is greater than that of hydrogen bond loss during the entry of water molecules into the bottom tube. The critical infiltration pressure as well as the total energy absorption of the top tube in SNEAS were higher than that of the corresponding single tube NEAS. The research findings have expanded the fundamental database of cascade nanofluidic systems and offer valuable insights for the application design of such systems.

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Section: Results and Analysismentioning

confidence: 99%

Section: Model and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on the Influence of Loading Rate on the Cascade Characteristics of Nanofluidic Systems

Zhang,

Liu,

Xiao

et al. 2024

Energy Fuels

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“…The performance of the discussed nanofluidic systems herein is contingent upon the size and type of the nanopore and the type of functional liquid employed. Numerous researchers have analyzed and studied the types and pore sizes of nanoporous media in nanofluidic systems [ 6 , 7 , 8 , 9 , 10 , 11 ]. At the same time, functional liquids play an influential role as an essential ingredient of the nanofluidic systems.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ion Size on Pressure-Induced Infiltration of a Zeolite-Based Nanofluidic System

et al. 2023

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A nanofluidic system consists of a nano-porous medium and functional liquid, which demonstrates a higher energy absorption density compared to conventional systems for energy absorption. Alterations in the composition of the functional liquid can significantly impact the properties of a nanofluidic system. In this paper, the widely used zeolite ZSM-5 was chosen as the porous medium to establish a nanofluidic system. Three distinct electrolyte solutions, namely KCl aqueous solutions, NaCl aqueous solutions and MgCl2 aqueous solutions were employed as functional liquids while pure water served as the reference condition for configuring four kinds of nanofluidic systems. Pressure-induced percolation experiments were performed on the four zeolite-based systems. The difference in the infiltration process between the electrolyte solution systems and the deionized water system has been ascertained. The effect of the ion size on the infiltration and defiltration process has been determined. The results show that the introduction of ions induces a hydration effect, resulting in a higher critical infiltration pressure of the electrolyte solution system compared to an aqueous solution system. The magnitude of cation charge directly correlates with the strength of the hydration effect and the corresponding increase in critical infiltration pressure. Upon entering the nanochannel, the liquid infiltrates primarily in the form of ions rather than a cation hydration form. The larger the ion size, the shallower the penetration depth after entering the nanopore channel and the larger the corresponding relative outflow rate. The present work will provide valuable theoretical complementary and experimental data support for nanofluidic system applications.

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“…During recent years, when studying the nanofluidic behavior of liquid molecules entering and exiting the pores on a nanoporous material’s surface, some scholars have discovered that the thermodynamic system composed of lyophobic nanopores and a non-wetting liquid environment has the characteristics of absorbing, converting, accumulating, or dissipating energy [ 1 , 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

A Simulation Methodology for Analyzing the Energy-Absorption Capabilities of Nanofluidic-System-Filled Tube under Split Hopkinson Pressure Bar Experiment

Zhang

Zhu

et al. 2022

Materials

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The energy-absorption mechanism of nanofluidic systems is being investigated under dynamic cases, represented by the split Hopkinson pressure bar experiment. However, the cost of this cannot be ignored. Therefore, numerical simulation is playing an increasingly important role in optimizing the split Hopkinson pressure bar experimental technology and analyzing its accuracy. In this paper, a three-dimensional finite element simulation model of the split Hopkinson pressure bar experimental devices was proposed to analyze the energy-absorption capabilities of nanofluidic-system-filled tubes. The reliability of this methodology was discussed in terms of model construction, model validation and potential application, indicating the simulation methodology is applicable to further investigation and can provide a reference for engineering practice. The simulation results showed that the infiltration pressure and the mass ratio of solid to liquid determine the post-buckling compression stress and the effective compression stroke, respectively.

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Fast Spontaneous Transport of a Non-wetting Fluid in a Disordered Nanoporous Medium

Cited by 4 publications

References 40 publications

Study on the Influence of Loading Rate on the Cascade Characteristics of Nanofluidic Systems

Study on the Influence of Loading Rate on the Cascade Characteristics of Nanofluidic Systems

Effect of Ion Size on Pressure-Induced Infiltration of a Zeolite-Based Nanofluidic System

A Simulation Methodology for Analyzing the Energy-Absorption Capabilities of Nanofluidic-System-Filled Tube under Split Hopkinson Pressure Bar Experiment

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