TYPE | Theor./Math. Physics Seminar |
Speaker: | Itzhak Fouxon |
Affiliation: | Tel Aviv University |
Organizer: | Eric Akkermans |
Date: | 06.11.2011 |
Time: | 14:30 |
Location: | Lewiner Seminar Room (412) |
Abstract: | About 60 years ago it was discovered that one can bring macroscopic changes in the turbulent flow of fluids by adding just a minute amount of polymers. Since then the phenomenon found many applications where the most famous one is the drag reduction: polymers help to lower the losses in the fluids' transfer in pipelines significantly. The complete understanding of the polymers' influence on the flow is still lacking. One thing is clear: this is a transition phenomenon where polymers are negligible when turbulence is not sufficiently strong and become important otherwise. In this talk I will describe recent progress understanding the transition. |