Motion of defects in rotating fluids.
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.
Millan-Rodriguez
Juan
J
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.
Perez-Garcia
Carlos
C
Bestehorn
Michael
M
Neufeld
Marc
M
Friedrich
Rudolf
R