Computational Details:

Study of 'Shell and Tube'-Heat-Exchanger exhibiting different tube arrangements

• squared domain of length 4
• 4 heated circles of radius 0.375 and located at points (1.334,1334),(2.667,1.334),(2.667,2.667),(1.334,2.667).
• inflow b.c.'s: constant velocity 1 at the left bottom edge i.e in between x=0, y>0 and x=0, y<1
• outflow b.c's: unknown at the right top edge i.e. in between x=4, y>3 and x=4, y<4
• Other b.c.'s: zero velocity at the fixed walls
• initial condition at t=0: starting from rest
• viscosity parameter: 1/nu=1,000

• coarse mesh (=level 2): 352 cells, 429 vertices, 1920 d.o.f.`s
  

  
  
  

• uniform refinements with exact boundary adaption
• visualization on level 4: 5,632 cells, 5,949 vertices, 28,800 d.o.f.`s
• computational mesh on level 4: 5,632 cells, 5,949 vertices, 28,800 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.01
• equidistant time stepping for visualization with k=0.25 (= 1 frame)
• Total time T=30 corresponds to 3,000 time steps
• fractional step theta scheme

• date: 03/10/2004
• simulation by: Raavi Subash Kumar
• visualization by: Raavi Subash Kumar
• SUN ULTRA1/140: 4.75 MB, 3263 seconds
• GMV data: 116 MB
• Software: FEATFLOW1.2 + 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!