Characterization of jets for impulsively-started needle-free jet injectors: Influence of fluid properties
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Drug Delivery Science and Technology"
DOI: 10.1016/j.jddst.2019.101167
Abstract: Abstract An experimental study was performed to assess the hydrodynamics of liquid jets used for needle-free injection, where the typical orifice diameter is ~155 μm and velocity is in range of ~ 60–140 m/s. The jet is… read more here.
Keywords: characterization jets; started needle; impulsively started; jet ... See more keywords
Invariant scaling of impulsively started polygonal disks
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2025.276
Abstract: Abstract The flow behind impulsively started circular and polygonal plates is investigated experimentally, using particle image velocimetry at several azimuthal angles. Observing plates accelerating up to a steady Reynolds number $Re=27\,000$ , the three invariants… read more here.
Keywords: started polygonal; polygonal disks; impulsively started; invariant scaling ... See more keywords
A numerical study of initial flow past an impulsively started rotationally oscillating circular cylinder using a transformation-free HOC scheme
Sign Up to like & getrecommendations! Published in 2017 at "Physics of Fluids"
DOI: 10.1063/1.5001731
Abstract: The initial development of the two dimensional viscous, incompressible flow induced by an impulsively started circular cylinder which performs time dependent sinusoidal rotational oscillations about its axis is investigated numerically. The investigation is based on… read more here.
Keywords: impulsively started; cylinder; initial development; circular cylinder ... See more keywords
Experimental study on the impulsively started motion of a close-to-neutral buoyancy freely decelerating sphere
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Fluids"
DOI: 10.1063/5.0141322
Abstract: An experimental study is presented that addresses the problem of a freely decelerating sphere in a still water tank. The diameter of the sphere was 0.04 m. Three different solid-to-fluid density ratios were considered: 0.78, 0.88,… read more here.
Keywords: impulsively started; motion; freely decelerating; decelerating sphere ... See more keywords
Impulsively started, steady and pulsated annular inflows
Sign Up to like & getrecommendations! Published in 2017 at "Fluid Dynamics Research"
DOI: 10.1088/1873-7005/aa5add
Abstract: A computational investigation was carried out on low Reynolds number laminar inflow starting annular jets using multiple blocking ratios and atmospheric ambient conditions. The jet exit velocity conditions are imposed as steady, unit pulsed, and… read more here.
Keywords: pulsed inflow; sinusoidal pulsed; steady pulsated; started steady ... See more keywords