Computational Details:

"(Regularized) Driven Cavity (II) at low Reynolds number (height 1, width 1 of the cavity)"

• stationary 2D "lid driven cavity" flow
• squared domain of length 1
• Dirichlet b.c.'s for the u-velocity at the top: u=1 for y=1
• Dirichlet b.c.'s for the u-velocity at the bottom: u=0.5 for y=0
• other b.c.'s: zero velocity elsewhere for u and v
• initial condition at t=0: starting from rest
• viscosity parameter: 1/nu=5,000

• coarse mesh (=level 1): 53 cells, 72 vertices, 301 d.o.f.`s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 5: 13,568 cells, 13,857 vertices, 68,416 d.o.f.`s
• computational mesh on level 6: 54,272 cells, 54,849 vertices, 272,512 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.027777778
• equidistant time stepping for visualization with k=0.166666666 (= 1 frame)
• Total time T=50 corresponds to 1,800 time steps
• fractional step theta scheme

• date: 05/23/1998
• simulation by: J.Ehlers
• visualization by: J.Ehlers
• SUN ULTRA1/140: 52 MB, 23,654 seconds
• AVS data: 440 MB
• Software: FEATFLOW1.0 + 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!