MIME Seminar Exceeding the Limits of Polymer Drag Reduction

Friday, February 21, 2020
12:30 PM - 2:00 PM
Nitschke Hall 1027, SSOE Seminar Room
Event Type
College of Engineering
Contact
Kathryn Rose
419-530-8210
Link
http://calendar.utoledo.edu/EventDetails.aspx?EventDetailId=64728

Abstract:

Adding only a few parts per million (by weight) of long-chained polymer molecules to a flow can reduce turbulent drag upwards of 80%. This can result in greatly decreased pumping costs in pipelines, reduced turbulence induced noise in submarines, and quicker refueling of airplanes, just as a few examples. I will show that the effect of polymers on “Newtonian turbulence” is more significant than many researches have previously postulated and proved that the maximum prescribed limit of polymer drag reduction can be significantly exceeded (up to 100%). A breakthrough in our understanding of the origins of “polymer induced turbulence” will be presented and I demonstrate that unlike its Newtonian counterpart, this form of turbulence can be sustained at extremely low Reynolds number (close to Re=1)

Bio:

George Choueiri recently joined the MIME department at the University of Toledo as Assistant Professor. He obtained his Ph.D. in Mechanical Engineering from the University of Ottawa and later joined the Institute of Science and Technology Austria as a Marie Skłodowska-Curie Fellow. His recent research interests include polymer drag reduction, particle-laden flows, and instabilities in non-Newtonian flows.

Participation is mandatory for all MIME graduate students

Light refreshments will be served at 12:40

George Choueiri
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