Computational Details:

"Flow in a centrifugal finishing machine (OTEC) at medium Reynolds number in 3D"

• height of the domain: 3
• diameter of the exterior domain: 1.5 up to 2.8
• diameter of the interior cylinder part: 1
• height of the lower rotating and the interior cylinder part: 1
• varying rotational speed of the lower wall and interior cylinder of maximum order 0.5 up to 1.5
• other b.c.'s: zero velocity at the fixed walls
• initial condition at t=0: starting almost fully developed (with coarse grid solution)
• viscosity parameter: 1/nu=100,000

• coarse mesh (=level 1): 12 cells, 28 vertices, 147 d.o.f.'s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 5: 49,152 cells, 51,553 vertices, 498,432 d.o.f.`s
• computational mesh on level 6: 393,216 cells, 402,625 vertices, 3,959,808 d.o.f.`s
• nonconforming nonparametric rotated trilinear fem's (meanvalue version), UPW

• fixed time stepping for computation with k=0.111112
• fixed time stepping for visualization with k=0.333334 (= 1 frame)
• Total time T=25 seconds corresponds to 225 time steps
• Fractional step theta scheme

• date: 04/23/99
• simulation by: S.Turek
• visualization by: S.Buijssen
• SUN ULTRA60/300 MHz: 450 MB, 332,818 seconds
• GMV data: 580 MB
• Software: FEATFLOW1.2 (CC3D_MOVBC)

• 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!