Flow Visualization of Narrow Rectangular Channel for Annular Flow, Rolling-Wispy Flow, and Wispy Flow.

<p>The three videos showcase three different flow regimes in Narrow Rectangular Channels. A new flow regime called rolling-wispy flow is identified and flow visualization is shown in the file named Rolling_Wispy_Flow.avi. The other flow regimes are provided to contrast the three different flow regimes. It is evident from the videos that rolling-wispy flow shows characteristics of wispy flow during the rolling wave (material wave) in the liquid film at wall, hence the name.</p> <p>P.S.: The video files can be opened in VLC.</p>