Computational Details:

"Perpendicular pipe flow into a channel at low Reynolds number"

• length of channel before/in/after the lower inlet/total: 6.3/0.2/6.3/12.8
• height of channel/lower pipe : 1.0/1.0
• inflow b.c.'s: constant with velocity 1 at the lower pipe side
• outflow b.c.'s: natural "do nothing" b.c.'s at the right and left side
• other b.c.'s: zero velocity at fixed walls
• initial condition at t=0: starting from rest
• viscosity parameter: 1/nu=1,000

• coarse mesh (=level 1): 18 cells, 30 vertices, 112 d.o.f.`s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 6: 18,432 cells, 18,785 vertices, 92,864 d.o.f.`s
• computational mesh on level 8: 294,912 cells, 296,321 vertices, 1,477,376 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.018518519
• equidistant time stepping for visualization with k=0.166666666 (= 1 frame)
• Total time T=46 seconds corresponds to 2,502 time steps
• fractional step theta scheme

• date: 01/20/98
• simulation by: S.Turek/L.Seioukova
• visualization by: L.Seioukova
• SUN ULTRA2/200: 250 MB, 240,293 seconds
• AVS data: 845 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!