Search Results - "Panchagnula, Mahesh V."
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1
Asymmetric lung increases particle filtration by deposition
Published in Scientific reports (03-06-2023)“…Human lung is known to be an asymmetric dichotomously branched network of bronchioles. Existing literature on the relation between anatomy and air-flow physics…”
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2
User authentication system based on human exhaled breath physics
Published in PloS one (22-04-2024)“…This work, in a pioneering approach, attempts to build a biometric system that works purely based on the fluid mechanics governing exhaled breath. We test the…”
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3
Pulmonary drug delivery and retention: A computational study to identify plausible parameters based on a coupled airway-mucus flow model
Published in PLoS computational biology (01-06-2022)“…Pulmonary drug delivery systems rely on inhalation of drug-laden aerosols produced from aerosol generators such as inhalers, nebulizers etc. On deposition, the…”
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4
Inhalation of virus-loaded droplets as a clinically plausible pathway to deep lung infection
Published in Frontiers in physiology (19-01-2023)“…Respiratory viruses, such as SARS-CoV-2, preliminarily infect the nasopharyngeal mucosa. The mechanism of infection spread from the nasopharynx to the deep…”
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5
Effect of the initial conditions on the onset of motion in sessile drops on tilted plates
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (20-08-2014)“…•We study the onset of motion in sessile drops due to tilting.•We show that a moving angle when the triple line deforms, is the first critical angle.•A second…”
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6
Sweating Liquid Micro-Marbles: Dropwise Condensation on Hydrophobic Nanoparticulate Materials
Published in Langmuir (23-10-2012)“…Liquid marbles have opened up several potential applications including biochemical batch reaction engineering and gas sensing. To be successful candidates in…”
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7
On Synthesizing Solid Polyelectrolyte Microspheres from Evaporating Liquid Marbles
Published in Langmuir (06-07-2010)“…We report a simple evaporation process using liquid marbles as precursors to produce high sphericity, precisely diameter controlled polyelectrolyte…”
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8
Trends in Multiphase Modeling and Simulation of Sprays
Published in International journal of spray and combustion dynamics (01-12-2014)“…The characteristic features of sprays pose unique challenges to multiphase flow methods that are used to model and simulate their behavior. This article…”
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9
Sparse Game Changers Restore Collective Motion in Panicked Human Crowds
Published in Physical review letters (01-02-2019)“…Using a dynamic variant of the Vicsek model, we show that the emergence of disorder from an orderly moving human crowd is a nonequilibrium first-order phase…”
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10
Comment on How Wenzel and Cassie Were Wrong by Gao and McCarthy
Published in Langmuir (18-12-2007)Get full text
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11
Destabilization characteristics of three dimensional Rayleigh–Taylor mechanism on a cylindrical interface
Published in Meccanica (Milan) (2020)“…The stability of a cylindrical interface separating two incompressible, inviscid and immiscible fluids under the action of radial motion is studied. Linear…”
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12
Onset of sliding motion in sessile drops with initially non-circular contact lines
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (05-06-2016)“…[Display omitted] •Impending motion in nearly elliptical drops is dependent on drop orientation.•Experiments and computations are used to determine moving and…”
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13
Mechanically robust nanoparticle stabilized transparent liquid marbles
Published in Applied physics letters (21-07-2008)“…Optically transparent liquid marbles were made from water and glycerol drops embedded in surface-treated fumed silica nanoparticles. The mechanical robustness…”
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14
Shapes of Splattered Drops
Published in Langmuir (09-05-2017)“…Drops that impact and stick to a surface (splattered drops) commonly show noncircular triple lines. Physical or chemical defects on the surface are known to…”
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15
Helical modes in combined Rayleigh–Taylor and Kelvin–Helmholtz instability of a cylindrical interface
Published in International journal of spray and combustion dynamics (01-12-2016)“…The effect of competing Rayleigh–Taylor and Kelvin–Helmholtz mechanisms of instability applied to a cylindrical two-fluid interface is discussed. A…”
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16
Experimental and computational study of triple line shape and evolution on heterogeneous surfaces
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (05-08-2014)“…•Current work studies the effect of macroscale chemical heterogeneities on triple line.•Triple line shape and kinetics are studied, especially the nature of…”
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17
Effect of Three-Phase Contact Line Topology on Dynamic Contact Angles on Heterogeneous Surfaces
Published in Langmuir (06-11-2007)“…Cassie−Baxter theory has traditionally been used to study liquid drops in contact with microstructured surfaces. The Cassie−Baxter theory arises from a…”
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18
Constitutive modeling of contact angle hysteresis
Published in Journal of colloid and interface science (15-05-2008)“…We introduce a phase field model of wetting of surfaces by sessile drops. The theory uses a two-dimensional non-conserved phase field variable to parametrize…”
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19
Phase field modeling of hysteresis in sessile drops
Published in Physical review letters (26-10-2007)“…We propose a novel approach to describe wetting of plane solid surfaces by liquid drops. A two-dimensional nonconserved phase field variable is employed to…”
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20
Effect of size distribution on mixing of a polydisperse wet granular material in a belt-driven enclosure
Published in Granular matter (01-05-2016)“…We use a recently developed coupled fluid–particle discrete element model to study mixing of a wet granular material in a two dimensional setting. The…”
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