The 9th International Symposium on ADVANCED TOPICS IN ELECTRICAL ENGINEERING 2015

Papers Proceedings »

Experiments and numerical simulations of vortex ring formation in microgeometries

The study is focused on the investigation and modeling of the vortex ring formation in two micro-configurations: (i) the starting of micro-jet formation in a fluid domain at rest (as benchmark test), and (ii) the evolution of post focusing vortical structures developed in a cross-shaped micro-junctions. The paper describes the experimental set-ups and presents the direct visualizations of the flow patterns. The phenomena are analyzed by comparing the experiments with the numerical simulations performed by the FLUENT code. The numerical results are found consistent with the experimental observations and confirm the value of CFD procedure in developing novel lab-on-a-chip applications.

Author(s):

IULIA - RODICA DAMIAN    
University “Politehnica” of Bucharest, REOROM Laboratory, Splaiul Independentei 313, 060042 Bucharest, Romania
Romania

CĂTĂLIN VALENTIN MĂRCULESCU    
National Institute for Research and Development in Microtechnologies – IMT Bucharest, Laboratory of Micro and Nano Fluidics – L10
Romania

CORNELIU BĂLAN    
University “Politehnica” of Bucharest, REOROM Laboratory, Splaiul Independentei 313, 060042 Bucharest, Romania
Romania

 

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