Stretching of polymers in a random three-dimensional flow.
Behavior of a dilute polymer solution in a random three-dimensional flow with an average shear is studied experimentally. Polymer contribution to the shear stress is found to be more than 2 orders of magnitude higher than in a laminar shear flow. The results indicate that the polymer molecules are strongly stretched by the random motion of the fluid.
Groisman
A
A
Department of Physics of Complex Systems, The Weizmann Institute of Science, 76100 Rehovot, Israel.
Steinberg
V
V