Publications de Isha Shukla | EPFL Graph Search

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A capillary jet falling under the effect of gravity continuously stretches while thinning downstream. We report here the effect of external periodic forcing on such a spatially varying jet in the jetting regime. Surprisingly, the optimal forcing frequency ...

Harnessing fluidic instabilities to produce structures with robust and regular properties has recently emerged as a new fabrication paradigm. This approach is exemplified in the work of Gumennik et al. [Nat. Commun. 4, 2216 (2103)], in which the authors fa ...

We study here experimentally, numerically and using a lubrication approach, the shape, velocity and lubrication film thickness distribution of a droplet rising in a vertical Hele-Shaw cell. The droplet is surrounded by a stationary immiscible fluid and mov ...

Three-dimensional control is considered in the flow past a backward-facing step (BFS). The BFS flow at Reynolds number Re = 500 (defined with the step height and the maximum inlet velocity) is two-dimensional and linearly stable but increasingly receptive ...

Among hydrodynamically unstable flows, the amplifier-flows are characterized by their large amplification potential in presence of external noise. Since amplifiers do not have an intrinsic dynamics, a chosen forcing can be applied to eventually control the ...

It was recently demonstrated that feeding a silicon-in-silica coaxial fiber into a flame-imparting a steep silica viscosity gradient-results in the formation of silicon spheres whose size is controlled by the feed speed [Gumennik et al., "Silicon-in-silica ...

Isha Shukla

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Frequency selection in a gravitationally stretched capillary jet in the jetting regime

Particle size selection in capillary instability of locally heated coaxial fiber

Film thickness distribution in gravity-driven pancake-shaped droplets rising in a Hele-Shaw cell

Optimal spanwise-periodic control for recirculation length in a backward-facing step flow

Response of noise-amplifier flows: From linear control to nonlinear jet breakup

Reduced model for capillary breakup with thermal gradients: Predictions and computational validation