Results 81 to 90 of about 40,690 (201)
Subvoxel Control of Fiber Orientation via Multidirectional Shearing in 3D Printing
A novel 3D printing technique enables subvoxel control of fiber orientation in all three directions through multidirectional shearing using nozzle rotation and inclination. It allows localized and tunable mechanical and thermal responses through programmable microstructures within a strand.
Berin Šeta +5 more
wiley +1 more source
RANS-VOF modelling of the Wavestar point absorber [PDF]
Highlights•A fully nonlinear, coupled model of the Wavestar WEC has been created using open-source CFD software, OpenFOAM®.•The response of the Wavestar WEC is simulated in regular waves with different steepness.•Predictions of body motion, surface elevation, fluid velocity, pressure and load are compared with physical measurements.•Model stability is ...
E.J. Ransley +5 more
openaire +2 more sources
Hierarchical Self‐Assembled Nanoparticles for Efficient and Eco‐Friendly Herbicide Delivery
Hierarchical host–guest and electrostatic self‐assembly of Diuron/SBE‐β‐CD@CSH for enhanced herbicide efficacy and environmentally safe delivery. ABSTRACT Herbicides are indispensable for safeguarding global crop production, yet their effectiveness is often undermined by extensive environmental losses during application.
Yuntian Xiao +6 more
wiley +1 more source
Abstract Intermittent flow is a widely recognized phenomenon across various fields, characterized by the spatial‐temporal fluctuations of the two‐phase topology. However, its implications for solute dispersion and mixing remain insufficiently understood.
Kai Zhang +5 more
wiley +1 more source
New VOF interface capturing and reconstruction algorithms [PDF]
Several new methods are presented for the capturing and tracking of material boundary interfaces. All methods belong to the general Volume Of Fluid (VOF) approach, and vary from simple flow aligned algorithms to more complex geometric modeling. The performance of the different methods is evaluated by solving the advection equations for a variant of the
openaire +2 more sources
Modeling Interactions and Dynamic Saturation Processes in Karst Media
Abstract The simulation of karst aquifers is highly challenging due to complex conduit‐matrix interactions. This study utilizes KarstFOAM, a high‐fidelity, physics‐based numerical model, to address these challenges. KarstFOAM integrates (a) a unified single‐domain Forchheimer–Darcy–Brinkman–Stokes (FDBS) formulation that transitions naturally across ...
F. Huang +5 more
wiley +1 more source
In this paper, three-dimensional two phase turbulent free surface flow is solved by an in-house code. The incompressible Reynolds average Navier-Stocks equations (RANS) with k-ε turbulence model are solved by the finite volume method in the non ...
Hashem Moradi +2 more
doaj
Microscopic seepage simulation of gas and water in shale pores and slits based on VOF
The microscopic pore-fracture structure and wettability have a significant influence on the two-phase seepage of shale gas and water. Due to the limitation of experimental conditions, the seepage patterns of gas and water in shale pores and slits under ...
Wang Benqiang +5 more
doaj +1 more source
Role of Dead‐End Regions and Transmitting Pores in Mixing and Reactivity in Unsaturated Porous Media
Abstract Mixing‐limited reactions in unsaturated porous media are controlled by complex pore‐scale processes arising from air and water phases coexistence. Decreasing water saturation increases flow heterogeneity, creating preferential flow paths and dead‐end regions (DER) that alter solute distribution and reaction efficiency.
Saif Farhat +2 more
wiley +1 more source
Numerical investigation of high-speed droplet impact using a multiscale two-fluid approach [PDF]
A single droplet impact onto solid surfaces remains a fundamental and challenging topic in both experimental and numerical studies with significant importance in a plethora of industrial applications, ranging from printing technologies to fuel injection ...
Gavaises, M. +4 more
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