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http://dx.doi.org/10.5916/jkosme.2014.38.10.1269

CFD analysis of geometric parameters that affect dean flow in a helical microchannel  

Prasad, Bibin (Department of Mechanical Engineering, Graduate School, Kookmin University)
Kim, Jung Kyung (School of Mechanical Systems Engineering, Kookmin University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.38, no.10, 2014 , pp. 1269-1274 More about this Journal
Abstract
Due to the presence of Dean flow in curved ducts, helical channels have drawn attention recently because of the practical industrial applications. The manipulation of fluids through microfluidic devices is widely used in many scientific and industrial areas. In the present study, numerical simulations were performed on a helical microchannel to predict the impact of different design parameters that affect Dean flow. Important geometric parameters such as the channel cross section, pitch, radius of curvature, and number of turns were considered for the analysis. The study also incorporates the effect of varying flow rate on Dean flows. It was found from the simulation results that microchannel cross section and pitch have a significant impact on maintaining the Dean flow, compared to the radius of curvature, number of turns, and flow rate.
Keywords
Helical microchannel; Dean flow; Parametric study; CFD;
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