Laminar Circular Cylinder Unsteady vortex shedding case Structured Grid freestream static 0.2 0.00045146 500.00 0. 0. turbulence laminar converge level 1.0e-9 !implicit operator implicit full ! Specifies 2nd order implicit time marching implicit order two ! Wall boundary implicit boundary on ! Explit RHS operator rhs hlle second physical wall slip iterations 1 ! Specify time-accurate mode with time step dt in sec/(Lr/ar) cfl# mode 3 dt 0.1 itime 0 cycles 10000 iterations per cycle 1 # The reference length is the cylinder diameter in inches # The reference area is the cylinder cross sect. area in inches squared loads print planes lift frequency 1 reference length 39.37 reference area 1217.37 zone 1 surface j 1 force viscous endloads history variable p u frequency 1 region 1 384 384 46 46 1 1 endhistory spawn "save_cfl.sh history/cyl_lam" frequency 20 end