Selected Papers from the 12th International Conference on Nanochannels, Microchannels, and Minichannels

Nine papers in this issue of Heat Transfer Engineering stem from presentations at the 12th International Conference on Nanochannels, Microchannels, and Minichannels (ICNMM 2014) in Chicago, IL, August 3–7, 2014. This conference of the American Society of Mechanical Engineers (ASME) was organized jointly with that of its Fluids Engineering Division. This collection of studies on pool boiling or flow boiling illustrates the variety of approaches presented in the 15 tracks of the 2014 ICNMM Conference, that is, characterization of multiphase flow regimes (the fourth paper, by Muzychka and Ghobadi, and the eight paper, by Wu and Sunden), studies on instabilities (the second paper, by Ide et al., and the third paper, by Khovalyg et al.), nonintrusive metrology (the seventh paper, by Sharar et al., and the ninth paper, by Rasouli and Narayanan), novel flow management strategies (the fifth paper, by Nagano et al., and the sixth paper, by Fox et al.), and packaging of electronics and thermofluid systems (the first paper, by Oh et al., and the ninth paper, by Rasouli and Narayanan). Importantly, these nine papers leave us with fugacious impressions. First, there is an emergence of efficient, affordable, and nonintrusive visualization tools to probe the transient and spatial intricacies of multiphase flows at submillimeter scales (seventh and ninth papers). “Seeing is believing,” and these ad-