Serpentine MicroChannel Flow

Helical microchannel flow Serpentine microchannel flow Spiral mierochaimel flow... 

Serpentine microchannel flow Helical microchannel flow Spiral microchannel flow... 

Zhu J, Canto RC, Keten G, Vedantam P, Tzeng TJ, Xuan X (2011) Continuous flow separation of particles and cells in a serpentine microchannel via curvature-induced dielectrophoresis. Microfluid Nanofluidics 11 743-752... 

A coolant channel is guided through the metal block in a serpentine fashion so that reactant and coolant flows are orthogonal [272]. A thermocouple measures the temperature at the product outlet. This microreactor was developed for the (very fast) fluorination reactions with elemental fluorine. Therefore, the surface of the microchannel was inactivated by exposure to the increasing concentration of fluorine in nitrogen. 

Integrated Microdevices for Medical Diagnostics, Fig. 2 (Left) Schematic diagram of a blood typing biochip. The device contains flow splitting microchannels, a serpentine micromixer, reaction microchambers, and detection microfilters. The reaction chamber holds 3 pi... 

Apart from the microchannel cross-section, the impact of non-straight charmels is crucial, especially for mixing applications, where serpentine channels have been shown to break symmetry and enhance mixing in bubbles [106]. Note that this enhanced mixing is due to chaotic advection in Stokes flow. Dean vortices, i.e. secondary flow patterns due to centrifugal inertia, are typically not a problem in low-inertia (Re< 1) microfluidic applications. 

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