CONFINED CIRCULAR CYLINDER IN A CHANNEL


Periodic vortex shedding from a confined circular cylinder in a channel with blockage ratio D/H=0.50

Streamlines at Re=200    Vorticity contours at Re=200   Pressure contours at Re=200


Periodic vortex shedding from a confined circular cylinder in a channel with blockage ratio D/H =0.70

Streamlines at Re=200    Vorticity contours at Re=200   Pressure contours at Re=200


Periodic vortex shedding from a confined circular cylinder in a channel with blockage ratio D/H =0.80

Streamlines at Re=200    Vorticity contours at Re=200   Pressure contours at Re=200

Streamlines at Re=160    Vorticity contours at Re=160   Pressure contours at Re=160


Periodic vortex shedding from a confined circular cylinder in a channel with blockage ratio D/H=0.90

Streamlines at Re=200    Vorticity contours at Re=200    Pressure contours at Re=200


LINEAR STABILITY ANALYSIS

 
Computed  eigenvalues from the linear stability analysis at Re=125 for D/H=0.50.



       

Computed pressure contours for 3D Stokes flow with D/H=0.5 and W/H=2.5.


Computed  pressure contours for 3D flow at Re=100 with D/H=0.5 and W/H=2.5.


       

Streamtraces at Re=100 with D/H=0.5 and W/H=2.5.