Computational Details:

"Jet flow in a box at low Reynolds number"

• length/height of box: 3/4.8
• width of upper inlet: 0.12
• inflow b.c.'s: parabolic u-velocity profile at the left edge with constant value of 4.8. From above, the "fast" inflow has a speed of 75 (parabolic profile) with an angle of 45 degree for the entrance.
• outflow b.c.'s: natural "do nothing" b.c.'s at the right outlet from y=0 until y=2.25
• other b.c.'s: zero velocity at fixed walls
• initial condition at t=0: starting from rest
• viscosity parameter: 1/nu=10

• coarse mesh (=level 1): 55 cells, 70 vertices, 303 d.o.f.'s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 5: 14,080 cells, 14,305 vertices, 70,848 d.o.f.`s
• computational mesh on level 6: 56,320 cells, 56,769 vertices, 282,496 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.00033333334
• equidistant time stepping for visualization with k= 0.002 (= 1 frame)
• Total time T=1 seconds corresponds to 3,000 time steps
• fractional step theta scheme

• date: 03/06/98
• simulation by: S.Turek
• visualization by: S.Turek
• SUN ULTRA 45/250: 46 MB, 31,731 seconds
• AVS data: 1,155 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!