منابع مشابه
Wave speeds in wavy Taylor-vortex flow
The speed of travelling azimuthal waves on Taylor vortices in a circular Couette system (with the inner cylinder rotating and the outer cylinder at rest) has been determined in laboratory experiments conducted as a function of Reynolds number R, radius ratio of the cylinders 7, average axial wavelength h , number of waves m, and the aspect ratio r (the ratio of the fluid height to the gap betwe...
متن کاملThe transition to fully 3D chaos in Wavy Taylor Vortex flow
Taylor Vortex Flow (TVF) has only 2 degrees of freedom and the domain is fully foliated by Kolmogorov-Arnold-Moser (KAM) surfaces. Mixing thus only occurs via diffusion. For increasing Re TVF is replaced by wavy vortex flow (WVF) which has 3 degrees of freedom. WVF has the potential to exhibit chaotic advection which greatly enhances mixing. The rapid transition from TVF to WVF with increasing ...
متن کاملMicrobubbly drag reduction in Taylor-Couette flow in the wavy vortex regime
We investigate the effect of microbubbles on Taylor-Couette flow by means of direct numerical simulations. We employ an Eulerian-Lagrangian approach with a gas-fluid coupling based on the point-force approximation. Added mass, drag, lift, and gravity are taken into account in the modeling of the motion of the individual bubble. We find that very dilute suspensions of small non-deformable bubble...
متن کاملSimulation of Taylor-Couette flow. Part 2. Numerical results for wavy-vortex flow with one travelling wave
We use a numerical method that was described in Part 1 (Marcus 1984a) to solve the time-dependent Navier-Stokes equation and boundary conditions that govern Taylor-Couette flow. We compute several stable axisymmetric Taylor-vortex equilibria and several stable non-axisymmetric wavy-vortex flows that correspond to one travelling wave. For each flow we compute the energy, angular momentum, torque...
متن کاملThree-dimensional velocity field for wavy Taylor–Couette flow
The stability of wavy supercritical cylindrical Couette flow has been studied extensively, but few measurements of the velocity field in flow have been made. Particle image velocimetry was used to measure the azimuthal and radial velocities in latitudinal planes perpendicular to the axis of rotation for wavy cylindrical Couette flow in the annulus between a rotating inner cylinder and a fixed o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Visualization Society of Japan
سال: 2007
ISSN: 1884-037X,0916-4731
DOI: 10.3154/jvs.27.supplement2_37