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Statistics of polymer extensions in turbulent channel flow
Statistics of polymer extensions turbulent channel flow
2010/11/17
We present direct numerical simulations~(DNSs) of turbulent channel flow with passive Lagrangian polymers. To understand the polymer behavior we investigate the behavior of infinitesimal line elements...
Elastic instability in stratified core annular flow
Elastic instability stratified core annular flow
2010/11/12
We study experimentally the interfacial instability between a layer of dilute polymer solution and water flowing in a thin capillary. The use of microfluidic devices allows us to observe and quantify...