Dripping to jetting transitions observed from supercritical fluid in liquid microcoflows

Samuel Marre (1, 2) , Cyril Aymonier (1) , P. Subra (3) , Emmanuel Mignard (2)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 LOF - Laboratoire du Futur
3 TREFLE - Transferts, écoulements, fluides, énergétique

Dripping to jetting transition from liquid-liquid to liquid-gas systems has been widely studied in microfluidics. Recent developments have permitted the use of supercritical fluids at high pressure and various temperatures in microfluidic systems to develop sustainable processes. In this article, we use this strategy to demonstrate the possibility to generate stable droplets and reversible dripping to jetting transitions at microscale from supercritical carbon dioxide-liquid water microcoflows.

Mots clés: Carbon compounds; Drops; Jets; Microfluidics; Multiphase flow; Water

Domaines: Mécanique des fluides [physics.class-ph]

Samuel Marre, Cyril Aymonier, P. Subra, Emmanuel Mignard. Dripping to jetting transitions observed from supercritical fluid in liquid microcoflows. Applied Physics Letters, 2009, 95 (13), pp.134105. ⟨10.1063/1.3242375⟩. ⟨hal-00433530⟩