On two-phase flow patterns and transition criteria in aqueous methanol and CO2 mixtures in adiabatic, rectangular microchannels

Significant Nusselt number increase in microchannels with a segmented flow of two immiscible liquids: An experimental study

“…A standard microfabrication/MEMS process [15,16] based on photolithography was applied to manufacture the microchannel (see the fabrication steps in Fig. 1).…”

Can segmented flow enhance heat transfer in microchannel heat sinks?

“…Segmented flow is a periodic pattern of non-condensable bubbles and liquid slugs created at a T-junction by the injection of air in liquidfilled microchannels. The bubbles are typically longer than the channel diameter [22]. More details regarding the physics of the bubble breakup can be found in [22][23][24][25].…”

“…The bubbles are typically longer than the channel diameter [22]. More details regarding the physics of the bubble breakup can be found in [22][23][24][25]. Segmented flow [22,26] has been widely used for chemical engineering applications where it increases mass transfer [27][28][29][30].…”

An experimental investigation of two-phase coating flow within microchannels: the effect of coating fluid rheology

“…Whitesides (2006) and Gunther and Jensen (2006) provide excellent reviews of microfluidics research currently underway. The simplest multiphase system involves Newtonian fluids (Guido et al 2000;Chung and Kawaji 2004;Hwang et al 2005;Garstecki et al a, b;Vananroye et al 2006;Fries et al 2008;Weinmueller et al 2009). Scientists have investigated more complex systems: including drop deformation (Chinyoka et al 2005;Hsu and Leal 2009) and co-flowing systems Husny and Cooper-White 2006;Steinhaus et al 2007;Christopher and Anna 2009) involving a Newtonian phase and a viscoelastic phase.…”