Computational Details:

"Flow in a gas burner (BMBF project with Vaillant/Remscheid)"

• see the description in http://www.featflow.de/ture/paper/raschrtu.ps.gz for the geometrical details
• inflow b.c.'s: constant with (maximum) velocity 1
• outflow b.c.'s: natural "do nothing" b.c.'s
• other b.c.'s: zero velocity at fixed walls
• temperature b.c.'s: constant 1 at lower side, natural b.c.'s otherwise
• physical scaling: corresponds to (about) Re=5,000 and temperature difference of 70 K degrees between flame and interior flow
• viscosity parameter (for flow and temperature): 1/nu=5,000

• coarse mesh (=level 1): 302 cells, 376 vertices, 1,696 d.o.f.`s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 4: 19,328 cells, 20,053 vertices, 98,128 d.o.f.`s
• computational mesh on level 6: 309,248 cells, 312,205 vertices, 1,555,149 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.0166667
• equidistant time stepping for visualization with k=0.1 (= 1 frame)
• Total time T=20 corresponds to 1200 time steps
• fractional step theta scheme

• date: 10/19/97
• simulation by: S.Turek/L.Seioukova/R.Schmachtel/P.Schreiber
• visualization by: S.Turek
• SUN ULTRA2/200: 286 MB, 143,016 seconds
• AVS data: 660 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!