Computational Details:

"Flow around 'a-ni-me' (Martin Hettich's Hobby) at high 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): 62 cells, 95 vertices, 382 d.o.f.'s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 5: 15,872 cells, 16,445 vertices, 80,512 d.o.f.`s
• calculation on level 6: 63,488 cells, 64,637 vertices, 319,744 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: 03 Feb. 1999
• simulation by: Martin Hettich and L.Rivkind/S.Turek
• visualization by: Martin Hettich and J.F.Acker
• SUN Ultra1/143MHZ 60 MB, 47164 seconds ( = 13.1 hours )
• GMV data: 584 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!