This paper provides new physical insight into the coupling between flow dynamics and cavitation bubble cloud behaviour at conditions relevant to both inception more complex phenomenon of “choking” using a multiphase compressible framework. Understanding process parameters that determine its break-off frequency is important for control phenomena such as structure vibration erosion. Initially, ro...

We introduce a new mechanism to pump liquid in microchannels based on the directional growth and displacement of gas bubbles in conjunction with the non-directional and selective removal of the bubbles. A majority of the existing bubble-driven micropumps employs boiling despite the unfavorable scaling of energy consumption for miniaturization because the vapor bubbles can be easily removed by c...

Recent observations of growing and collapsing bubbles in flows over axisymmetric headforms have revealed the complexity of the 'micro-fluid-mechanics ' associated with these bubbles (van der Meulen & van Renesse 1989; Brianqon-Marjollet et al. 1990; Ceccio & Brennen 1991). Among the complex features observed were the bubble-tobubble and bubble-to-boundary-layer interactions which leads to the s...

Bubble column reactors suffer from bubble coalescence resulting in a decreased mass transfer efficiency. In order to increase the mass transfer rate in bubble column reactors, a novel reactor is proposed, the Micro-Structured Bubble Column (MSBC). is novel reactor makes use of a wire-mesh serving the purpose of cuing bubbles into smaller bubbles. is increases the specific bubble surface area...