Interfacial Dynamics at Micro and Nanoconfinements
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In the varying cross-sectional nanopore, the characteristic length scale progressively approaches molecular dimensions as one moves axially along the converging passage.
Axial modulations in the interfacial slippage mediated by the specific geometrical constraints lead to a complex interplay of propagation of upstream flow conditions and the fundamental attributes of the interfacial layering in the downstream locations.
The multiscale modelling coupling MD and CFD serves a great deal to investigate flow instances where molecular interaction may impart dynamic attributes not realised previously.
Journal of Chemical Physics, https://doi.org/10.1063/5.0050317
Ion water interaction within varying nanoconfinement under the influence of external electric fields
This work aims to investigate the influence of surface wetting characteristics, concentration, and external field on the ion dynamics and flow characteristics within varying cross-sectional nanoconfinement.
Ionic currents in nanochannels may portray non-linear behaviour depending on the asymmetric channel configurations, non-uniform wall properties, and wall functionalisations.
ICR (ion current rectification) and ICP (ion current polarisation) are the two phenomena that have attracted huge attention towards biomedical devices, flow controls, synthesis, separation, iontronics, and lab-on-chips.
The ion-water interaction within nanoconfinements may show countless non-trivial characteristics under the influence of solution properties, channel configurations, wall physicochemical properties, and external stimuli.
Potential Applications:
Drug delivery, water desalination, filtration, nanoparticle characterisation, Ion current rectification (ICR) etc.
Micro-nanofluidic Diode
Potential Applications:
Drug delivery, flow control devices, lab-on-chip and organ-on-chip devices.
The linear correspondence between flow rate and pressure drop for low Reynolds number hydrodynamics is often a constraint for the realization of miniaturized fluid circuits with selective junctions.
Here we devise a micro-nanochannel junction with the directional flow in the nanochannel achieved by a combination of junction geometry and wall functionalization.
European Journal of Mechanics - B/Fluids, https://doi.org/10.1016/j.euromechflu.2023.11.001
Data-Driven Approaches in Fluid Flows
Understanding the flow friction is of huge importance in designing micro-nanoscale flow circuits.
The combination of surface physicochemical properties and roughness characteristics may be used for drag reduction and the proper design of flow channels and circuits.
Here, we study the flow friction and drag characteristics in a rough microchannel with variable surface wetting properties using FEM-based CFD modelling and ANN.
Physics of Fluids, https://doi.org/10.1063/5.0208554
Fluid Flow through Tree Shaped Microchannel Network
This model is inspired by tree structures. As each branch distributes food and water within several branches efficiently, our fluid channel system supplies fluid in several branches which may enhance heat transfer within the system. This type of plate may find applications in electronic chip cooling and other heat transfer applications.
A larger scale model is being developed to be used in building tiles so that the building can be more energy efficient, especially in a hot summer day.
Dynamic flow characteristics in nanofluidics
Dynamic behaviour is observed in the water interface within the varying nanoconfinement.
The interfacial properties may not necessarily depend on the local physio-chemical properties but astonishingly depend on the upstream flow characteristics.
The water ion may additionally possess non-intuitive flow characteristics.
Get in touch at nilanjanmndl3@gmail.com
Get in touch at nilanjanmndl3@gmail.com
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