Computational Details:

"Flow around the `FL' characters (Florian Staier) at medium Reynolds number"

• diameter of the circle: 2
• rotational speed 1 (counterclockwise) on the circle (tangential speed)
• other b.c.'s: zero velocity at the characters
• initial condition at t=0: starting fully developed
• viscosity parameter: 1/nu=1,000,000

• coarse mesh (=level 1): 37 cells, 58 vertices, 229 d.o.f.'s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 5: 9,472 cells, 9,823 vertices, 48,064 d.o.f.`s
• computational mesh on level 6: 37,888 cells, 38,591 vertices, 190,848 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.022222223
• equidistant time stepping for visualization with k= 0.2 (= 1 frame)
• Total time T= 50 seconds corresponds to 2,250 time steps
• fractional step theta scheme

• date: 08/10/98
• simulation by: F. Staier (L. Rivkind / S.Turek / J. Acker)
• visualization by: F. Staier
• SUN ULTRA1/170 33 MB, 23,133 seconds
• AVS data: 1,055 MB
• Software: FEATFLOW1.1 (BOUSS)

• For more details about numerical and algorithmic aspects see the `Mathematical Background' in the FEATFLOW manual or visit our paper archive for much more details.
• The problem-specific data for the applied software version including parameter files and input data can be downloaded here!