Publication
Detailed Jet Dynamics in a Collapsing Bubble
Publications associées (34)
Controlling the immobilization process of an optically enhanced protein microarray for highly reproducible immunoassay
By virtue of its high throughput multiplex detection capability, superior read-out sensitivity, and tiny analyte consumption, an optically enhanced protein microarray assay has been developed as a promising diagnostic tool for various applications, ranging ...
ROYAL SOC CHEMISTRY2021Physics of Bubble-Propelled Microrockets
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A popular method to induce synthetic propulsion at the microscale is to use the forces created by surface-produced gas bubbles inside the asymmetric body of a catalytic swimmer (referred to in the literature as microrocket). Gas bubbles nucleate and grow w ...
20183D Boundary Element Simulation of Droplet Dynamics in Microchannels: How Droplets Squeeze Through Constrictions and Move in Electric Fields
Flows of fluids with free surfaces show complex dynamical behavior. Examples include effects like capillary surface waves, topological transitions such as droplet breakup and coalescence, or pattern formation in wetting and de-wetting dynamics. These compl ...
EPFL2018Collapse phenomena of deformed cavitation bubbles
Cavitation bubbles are a topic of long-standing interest owing to the powerful phenomena associated with their collapse. Their unique ability to focus energy typically causes damage in hydraulic machinery (turbines, pumps, propellers, ...) but, if managed ...
EPFL2017Shock waves from nonspherical cavitation bubbles
Mohamed Farhat, Nicolas Dorsaz, Danail Obreschkow, Philipp Kobel, Outi Supponen, Marc Tinguely
We present detailed observations of the shock waves emitted at the collapse of single cavitation bubbles using simultaneous time-resolved shadowgraphy and hydrophone pressure measurements. The geometry of the bubbles is systematically varied from spherical ...
Amer Physical Soc2017Luminescence from cavitation bubbles deformed in uniform pressure gradients
Mohamed Farhat, Danail Obreschkow, Philipp Kobel, Outi Supponen
Presented here are observations that demonstrate how the deformation of millimetric cavitation bubbles by a uniform pressure gradient quenches single-collapse luminescence. Our innovative measurement system captures a broad luminescence spectrum (wavelengt ...
2017Simulation of bubble expansion and collapse in the vicinity of a free surface
The present paper focuses on the numerical simulation of the interaction of laser-generated bubbles with a free surface, including comparison of the results with instances from high-speed videos of the experiment. The Volume Of Fluid method was employed fo ...
Amer Inst Physics2016A Facile in Situ and UV Printing Process for Bioinspired Self-Cleaning Surfaces
Yves Leterrier, Sara Dalle Vacche, Marina Aymara González Lazo, Feyza Karasu Kiliç, Ioannis Katrantzis
A facile in situ and UV printing process was demonstrated to create self-cleaning synthetic replica of natural petals and leaves. The process relied on the spontaneous migration of a fluorinated acrylate surfactant (PFUA) within a low-shrinkage acrylated h ...
MDPI2016Detailed Jet Dynamics in a Collapsing Bubble
Mohamed Farhat, Danail Obreschkow, Philipp Kobel, Outi Supponen
We present detailed visualizations of the micro-jet forming inside an aspherically collapsing cavitation bubble near a free surface. The high-quality visualizations of large and strongly deformed bubbles disclose so far unseen features of the dynamics insi ...
Institute of Physics2015Beer tapping: dynamics of bubbles after impact
François Gallaire, Pierre-Thomas Paul Brun, Vladislav Mantic Lugo
Beer tapping is a well known prank where a bottle of beer is impacted from the top by a solid object, usually another bottle, leading to a sudden foam overflow. A description of the shock-driven bubble dynamics leading to foaming is presented based on an e ...
Iop Publishing Ltd2015