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Papers
61,005 resultsShowing papers similar to Research on Heat Transfer of Nanofluid in Porous Media: A Mini Review
ClearChemical entropy generation and second-order slip condition on hydrodynamic Casson nanofluid flow embedded in a porous medium: a fast convergent method
Researchers numerically investigated the combined effects of second-order velocity slip conditions, chemical reactions, and entropy generation on non-Newtonian Casson nanofluid flow through a non-Darcian porous medium, applying a fast convergent method to solve the coupled boundary layer, transport, and energy equations and optimize thermal system performance.
Heat Transfer in Cavities: Configurative Systematic Review
This comprehensive review synthesized research on heat transfer in enclosed cavities, covering the effects of geometry, fins, nanofluid properties, and magnetic fields on thermal performance. The findings provide guidance for optimizing cooling systems in electronics, solar collectors, and industrial heat exchangers.
A comparative study of thermo‐physical properties of different nanofluids for effective heat transfer leading to Li‐ion battery pack cooling
Researchers compared the thermal and physical properties of various nanofluids for cooling lithium-ion battery packs in electric vehicles. The study evaluated different nanoparticle-enhanced coolants to identify which combinations provide the most effective heat transfer, addressing the critical need to maintain battery operating temperatures within safe ranges for optimal performance and longevity.
Hydrophobic Interaction Effects on the Transport of a Model Nanoplastic in 2D and 3D Porous Media
Researchers investigated how hydrophobic interactions influence the transport and retention of model nanoplastic particles (hydrophobic ethyl cellulose nanoparticles) in 2D and 3D porous media, using extended DLVO calculations to show that hydrophobic attraction can drive irreversible attachment to hydrophobic surfaces and air-water interfaces even under electrostatic repulsion conditions unfavorable to attachment.
Experimental Confirmationof the Interception HistoryParadigm for Colloid (Micro and Nanoparticle) Transport in PorousMedia
Researchers experimentally confirmed the Interception History Paradigm for colloid transport in porous media, demonstrating that retention profiles for micro- and nanoplastics deviate from predictions of Colloid Filtration Theory under unfavorable surface interaction conditions. Their findings validate the role of interception history — prior contact events at grain surfaces — in explaining anomalous retention behavior of colloids including engineered nanomaterials and plastic particles.
Influence FF Concentration to Thermal Diffusivity in Liquid Form using Photopyroelectric (PPE) Setup and Dual-Beam Mode-Mismatched Thermal Lens Method with Different Optical Sensors
Researchers examined how concentration affects thermal diffusivity in nano-liquid formulations using the photopyroelectric setup and dual-beam mode-mismatched thermal lens method, testing standard liquids and graphene oxide samples with PVDF and photodiode optical sensors, finding an increasing trend in thermal diffusivity with concentration.
Effect of deposition, detachment and aggregation processes on nanoparticle transport in porous media using Monte Carlo simulations
Researchers developed a 3D computational model to study how engineered nanoparticles move through porous soil and sediment, accounting for deposition, detachment, and aggregation. Similar models can be applied to understand how nanoplastics and small microplastics move through groundwater systems.
Nanoparticle transport in partially saturated porous media: Attachment at fluid interfaces
This study used pore-network modeling to examine how hydrophobic nanoparticles -- including nanoplastics -- attach to fluid-fluid interfaces (air-water and oil-water) in partially saturated porous media, revealing fundamentally different attachment kinetics compared to solid-water interfaces. The results demonstrate that fluid interfaces act as efficient nanoparticle collectors that are largely bypassed by flowing water, with important implications for predicting nanoplastic transport and retention in unsaturated subsurface environments.
Using colloidal AFM probe technique and XDLVO theory to predict the transport of nanoplastics in porous media
Researchers used atomic force microscopy to directly measure forces between individual nanoplastics and soil porous media, finding that surface chemistry (amino vs. carboxyl modification) strongly controlled nanoplastic transport, with results better predicted by direct force measurements than by theoretical models alone.
Statuses, shortcomings, and outlooks in studying the fate of nanoplastics and engineered nanoparticles in porous media respectively and borrowable sections from engineered nanoparticles for nanoplastics
Researchers reviewed the state of knowledge on how nanoplastics and engineered nanoparticles move through porous media like soil and groundwater, synthesizing key transport mechanisms (advection, diffusion, electrostatic forces, straining) and arguing that while lessons from engineered nanoparticle research offer useful frameworks, nanoplastics require dedicated investigation due to fundamental differences in surface properties.
Microplastics/nanoplastics in porous media: Key factors controlling their transport and retention behaviors
This review examines what controls how microplastics and nanoplastics move through soil and other porous materials like sand and sediment. Factors like particle size, shape, surface charge, water flow speed, and the presence of other pollutants all influence whether plastics stay in place or travel deeper into groundwater. Understanding these transport behaviors is important for assessing the risk of microplastics contaminating underground drinking water sources.
Experimental Investigation of Microparticle Focusing in SiO2 Nanofluids Inside Curvilinear Microchannels
Researchers studied how microparticles move and concentrate inside curved microchannels filled with silicon dioxide nanofluids. The findings could improve the design of microfluidic devices used for separating particles, including potential applications in detecting nanoplastics.
Nanoteknolojinin Tıp ve Mühendislik Uygulamaları
This review covers nanotechnology applications in medicine and engineering, summarizing advancements in nanomaterial development and their utilization across biomedical and engineering domains.
Effects of input concentration, media particle size, and flow rate on fate of polystyrene nanoplastics in saturated porous media
Researchers systematically tested how input concentration, sand grain size, and flow rate control nanoplastic transport through saturated porous media, finding that nanoplastics are highly mobile under most conditions and — crucially — fragment into smaller sub-100 nm particles during long-term release, potentially increasing their environmental persistence and bioavailability.
Multi‐Scale Analysis of Dispersive Scalar Transport Across Porous Media Under Globally Nonlinear Flow Conditions
Researchers conducted multi-scale analysis of dispersive scalar transport across 3D porous media under globally nonlinear flow conditions, examining both linear (Darcy) and nonlinear regimes in digital Beadpack and Bentheimer sandstone samples. The study explored how global-scale flow nonlinearities affect key transport features observed across pore systems of varying complexity.
Prediction of the aggregation rate of nanoparticles in porous media in the diffusion-controlled regime
Researchers used computer simulations to model how nanoparticles clump together as they move through soil pores, finding that random particle motion (diffusion) drives aggregation far more than water flow does. This matters for predicting how nanoplastics and other nanoparticles spread and accumulate in underground environments.
Special Issue “Functional Nanomaterials: Structures, Compositions and Various Applications”
Researchers presented a special issue overview connecting fundamental structure-property relationships of functional nanomaterials to their performance in real-world technological devices and processes across a range of application domains.
Retention and transport behavior of microplastic particles in water-saturated porous media
Researchers investigated microplastic transport in water-saturated porous media using polystyrene microspheres, finding that particle size primarily determined retention behavior, with 50 nm particles showing high mobility while 500 nm particles exhibited greater attachment and slower migration.
Transport Behavior of Microorganisms in Porous Media
This review synthesizes research on the transport behavior of pathogenic microorganisms through porous media, analyzing the hydrodynamic, hydrochemical, and biological factors governing microbial colloid movement relevant to protecting drinking water resources. The review found that microorganisms behave as biological colloids subject to multiple simultaneous transport mechanisms, with microplastics identified as an additional factor influencing microbial mobility in some contexts.
Effects of polyamide microplastic on the transport of graphene oxide in porous media
Researchers used Extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory and column experiments to investigate how polyamide microplastics influence the transport of graphene oxide through saturated porous media, finding that polyamide presence, flow rate, ionic strength, and ionic type all significantly affected graphene oxide migration behaviour.
A molecular density functional theory for associating fluids in 3D geometries
Researchers developed a new molecular density functional theory for associating fluids in three-dimensional geometries, building on Wertheim's thermodynamic perturbation theory and statistical associating fluid theory. The approach enables more accurate modeling of inhomogeneous fluids relevant to filtration, adsorption, and porous material applications.
Numerical Heat Transfer and Fluid Flow: New Advances
This editorial introduces a special issue presenting new research on numerical modeling of heat transfer and fluid flow in engineering systems. No primary microplastics research is included in this entry.
Diffusiophoretic transport of colloids in porous media
This study is not primarily about microplastics; it investigates how chemical gradients (diffusiophoresis) change how colloidal particles move through porous media in general. Microplastic remediation is mentioned as one potential application area, but the work is fundamentally a fluid physics study.
Transport and clogging of microplastic particles in porous media: Microscale experiments and statistical analysis
This study used microscale experiments to observe how microplastic particles move through and clog porous materials like sand and gravel, which are commonly used in water filtration systems. The researchers found that the size of microplastic particles relative to the pore openings is the main factor determining whether clogging occurs. These findings matter because they help predict how microplastics travel through soil and water filters, affecting whether they reach drinking water sources.