Computational Details:

"Flow around the `BAR` characters (Barbara Stracke) 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): 23 cells, 42 vertices, 157 d.o.f.'s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 6: 23552 cells, 24222 vertices, 11,9104 d.o.f.`s
• computational mesh on level 7: 94208 cells, 95550 vertices, 473,728 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.0222223
• 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: 12/16/98
• simulation by: B. Stracke/J.F.Acker/L. Rivkind/S.Turek
• visualization by: B. Stracke
• SUN ULTRA 1/143MHZ 81 MB, 67,992 seconds
• GMV data: 875 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!