Liquid whistles are a kind of static mixer which pass fluid at high pressure through an orifice and subsequently over a blade. This subjects the fluid to high turbulent stresses and may result in mixing, emulsification, deagglomeration and disinfection.
- Ryan, David; Simmons, Mark; Baker, Michael (2017). "Determination of the flow field inside a Sonolator liquid whistle using PIV and CFD". Chemical Engineering Science. 163: 123–136. doi:10.1016/j.ces.2017.01.035.
- Ryan, David; Baker, Michael; Kowalski, Adam; Simmons, Mark (2018). "Emulsification using a "Sonolator" liquid whistle: A new correlation for droplet size from pilot-scale experiments" (PDF). Chemical Engineering Science. 189: 369–379. doi:10.1016/j.ces.2018.06.004.
- Ryan, David (2015). Investigation of Fluid Dynamics and Emulsification in Sonolator Liquid Whistles (EngD.). University of Birmingham, UK. Retrieved 1 Sep 2015.