Motion of a doublet of two cylinders in contact in a narrow channel flow.
The motion of two rigid circular cylinders in contact immersed in an incompressible Newtonian fluid in a channel is examined numerically in the zero Reynolds number limit, for various values of the cylinder radius/channel width ratio. Analyses of the time courses of the lateral position and the orientation of the doublet showed that, depending on the initial condition and the doublet/channel size ratio, the doublet exhibit one of the three types of motion: a continuous rotation in the same direction during a period, and a rotation changing its direction at every half period with a large or a small variation of the orientation.
Sugihara-Seki
M
M
National Cardiovascular Center Research Institute, Osaka, Japan.
D001696:Biomechanical Phenomena; D001783:Blood Flow Velocity / Q000502:physiology; D004907:Erythrocyte Deformability / Q000502:physiology*; D006801:Humans; D008955:Models, Cardiovascular; D008962:Models, Theoretical; D014655:Vascular Resistance / Q000502:physiology*