Observation and Manipulation of a Capillary Jet in a Centrifuge-Based Droplet Shooting Device

Instantaneous Solidification of a Centrifuge-driven Capillary Jet with Controlled Hydrodynamic Instability in a Centrifuge-based Droplet Shooting Device through Observational Analysis

This paper reports an observational analysis on droplet formation from a capillary-jet driven by centrifugal-gravity in a CDSD (Centrifuge-based droplet shooting device), and controlled synthesis of microbeads by instantaneous solidification of a sodium alginate solution jet breaking into drops owing to hydrodynamic instability. Our analysis may deepen understanding of micro capillary-jet and e...

Numerical Study of Droplet Generation Process in a Microfluidic Flow Focusing

Microfluidic flow focusing devices have been utilized for droplet generation on account of its superior control over droplet size. Droplet based microfluidics addressed many scientific issues by providing a novel technological platform for applications such as biology, pharmaceutical industry, biomedical studies and drug delivery. This study numerically investigated the droplet generation proce...

Modeling of Air Relative Humidity Effect on Adhesion Force in Manipulation of Nano-Particles and its Application in AFM

In this paper, the effect of air relative humidity and capillary force on contact geometry of surfaces based on JKR model by Atomic force microscopy was investigated in order to manipulate nano-particles. With transition from macro to nano-scale, the effect of surface forces becomes more significant in comparison with inertial force. Because contact mechanics models are based on surface energy ...

Numerical study on the jet dynamic through centrifuge spinning: influence of angular velocity

A numerical study of droplet deformation in a flat funnelform microchannel

Motivated by recent reported experiments, droplet deformation in a flat funnelform diverging microfluidic channel has been numerically studied. The structure of our microchannel is composed of two consecutive elements including a straight channel and a diverging channel. In this work, instead of solving the 3D Stokes equation, we solve a depth-averaged problem which is labeled two-dimensional p...