Editing Mixing (process engineering) (section)

===Liquid whistles===
{{main article|Liquid Whistle}}
Liquid whistles are a kind of [[static mixer]] which pass fluid at high pressure through an orifice and subsequently over a blade.<ref>{{cite journal|last1=Ryan|first1=David|last2=Simmons|first2=Mark|last3=Baker|first3=Michael|date=2017|title=Determination of the flow field inside a Sonolator liquid whistle using PIV and CFD|journal=Chemical Engineering Science|volume=163|pages=123–136|doi=10.1016/j.ces.2017.01.035|bibcode=2017ChEnS.163..123R |doi-access=free}}</ref> This subjects the fluid to high [[Turbulence|turbulent]] stresses and may result in [[Mixing (physics)|mixing]], [[emulsification]],<ref>{{cite journal|last1=Ryan|first1=David|last2=Baker|first2=Michael|last3=Kowalski|first3=Adam|last4=Simmons|first4=Mark|date=2018|title=Emulsification using a "Sonolator" liquid whistle: A new correlation for droplet size from pilot-scale experiments|journal=Chemical Engineering Science|volume=189|pages=369–379|doi=10.1016/j.ces.2018.06.004|bibcode=2018ChEnS.189..369R |url=http://pure-oai.bham.ac.uk/ws/files/50011638/Ryan_Emulsification_Chemical_Engineering_Science.pdf|doi-access=free}}</ref><ref>{{cite thesis|type=EngD.|last=Ryan|first=David|date=2015|title=Investigation of Fluid Dynamics and Emulsification in Sonolator Liquid Whistles|publisher=University of Birmingham, UK|url=http://etheses.bham.ac.uk/5696/|access-date=1 Sep 2015}}</ref> deagglomeration and disinfection.