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Computational Details:

"Flow around a rotating propeller at medium Reynolds number in 3D" Back to >>Flow around a rotating propeller at medium Reynolds number in 3D<<


Description of the flow problem
Description of the spatial discretization
Description of the temporal discretization
Computer requirements
Mathematical details




Description of the flow problem

  • length of the domain: 1.8
  • height of the domain: 0.6
  • width of the domain: 0.6
  • diameter of the propeller: 0.45
  • thickness of the propeller: 0.1
  • inflow speed 1 at part of the left side
  • fixed rotational speed 1 of the propeller
  • outflow at part of the right and upper side
  • other b.c.'s: zero velocity at the fixed walls
  • initial condition at t=0: starting from rest
  • viscosity parameter: 1/nu=100




Description of the spatial discretization

  • coarse mesh (=level 1): 9 cells, 24 vertices, 111 d.o.f.'s



  • uniform refinements with exact boundary adaption
  • visualization on level 5: 36,864 cells, 38,769 vertices, 374,016 d.o.f.`s
  • computational mesh on level 6: 294,912 cells, 302,305 vertices, 2,970,624 d.o.f.`s
  • nonconforming nonparametric rotated trilinear fem's (meanvalue version), UPW




Description of the temporal discretization

  • adaptive time stepping for computation
  • adaptive time stepping for visualization with about k=0.1 (= 1 frame)
  • Total time T=14 seconds corresponds to 100 macro time steps
  • Fractional step theta scheme




Computer requirements

  • date: 04/06/99
  • simulation by: S.Turek
  • visualization by: J.F.Acker
  • SUN ULTRA60/300 MHz: 379 MB, 389,321 seconds
  • GMV data: 590 MB
  • Software: FEATFLOW1.2 (CC3D_MOVBC)




Mathematical details

  • 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!




Please send any comments and suggestions to: featflow@featflow.de