title: Motion of defects in rotating fluids.
abstract: We study defect motion in a rotating convection cell. We present numerical results of a generalized Swift-Hohenberg equation, which provides a model description of the vertically averaged three-dimensional (3-D) hydrodynamic equations. Our model includes non-Boussinesq effects. It also accounts for the effects of the Coriolis force induced by a rotation of the fluid layer around its vertical symmetry axis. We show that even a slow rotation well below the Kuppers-Lortz instability causes defect motion perpendicular to the convective rolls. We derive an analytic estimation of that motion.
authors.affiliation: Departamento de Fisica y Matematica Aplicada, Facultad de Ciencias, Universidad de Navarra, 31080 Pamplona, Navarra, SpainInstitut fur Theoretische Physik und Synergetik der Universitat Stuttgart, Pfaffenwaldring 57/4, 70550 Stuttgart, Germany.
authors.forename: Juan
authors.initials: J
authors.lastname: Millan-Rodriguez
authors.forename: Carlos
authors.initials: C
authors.lastname: Perez-Garcia
authors.forename: Michael
authors.initials: M
authors.lastname: Bestehorn
authors.forename: Marc
authors.initials: M
authors.lastname: Neufeld
authors.forename: Rudolf
authors.initials: R
authors.lastname: Friedrich