title: Role of elastic stress in statistical and scaling properties of elastic turbulence.
abstract: The role of elastic stress in statistical and scaling properties of elastic turbulence in a polymer solution flow between two disks is discussed. The analogy with a small-scale magnetodynamics and a passive scalar turbulent advection in the Batchelor regime is used to explain the experimentally observed statistical properties, the flow structure, and the scaling of elastic turbulence. The emergence of a new length scale, namely, the boundary layer thickness, is observed and studied.
authors.affiliation: Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, 76100 Israel.
authors.forename: Teodor
authors.initials: T
authors.lastname: Burghelea
authors.forename: Enrico
authors.initials: E
authors.lastname: Segre
authors.forename: Victor
authors.initials: V
authors.lastname: Steinberg