Computational Details:

"Flow over a hill at medium Reynolds number"

• stationary 2D flow in a channel with a hill
• domain extensions: length 1.1, height 0.17, hill at x- coordinate 0.3, hill height 0.028
• Dirichlet b.c.'s for the u-velocity at the left: parabolic velocity profile with maximum velocity 1
• other b.c.'s: do-nothing b.c. at the right, zero velocity elsewhere for u and v
• initial condition at t=0: starting from rest
• viscosity parameter: 1/nu=10,000

• coarse mesh (=level 1): 36 cells, 50 vertices, 206 d.o.f.`s
• shown mesh (=level 3): 576 cells, 629 vertices, 2,984 d.o.f.`s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 5: 9,216 cells, 9,425 vertices, 46,496 d.o.f.`s
• computational mesh on level 7: 147,456 cells, 148,289 vertices, 738,944 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.006666667
• equidistant time stepping for visualization with k=0.02 (= 1 frame)
• Total time T=10 corresponds to 1,500 time steps
• fractional step theta scheme

• date: 05/12/97
• simulation by: S.Turek
• visualization by: W.Bangerth
• IBM RS6000/590: 130 MB, 50,185 seconds
• AVS data: 750 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!