Computational Details:

Study of 'Shell and Tube'-Heat-Exchanger exhibiting different tube arrangements Back to >>
Study of 'Shell and Tube'-Heat-Exchanger exhibiting different 
tube arrangements	
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Description of the flow problem
Description of the spatial discretization
Description of the temporal discretization
Computer requirements
Mathematical details




Description of the flow problem

  • Circular Domain of diameter 14.5
  • Four heated circles of radius 1 each located at Xi =3.7123 and Yi=3.7123 and a heated blade located at the center(0,0). The width of each blades are 0.56 units and length of 2.25units.
  • inflow b.c.'s: Natural boundry conditions.
  • outflow b.c.'s:NAtural Boundry conditions.
  • Other b.c.'s: Non zero velocity at a diameter of 5 units from the center.
  • initial condition at t=0: starting from rest
  • viscosity parameter: 1/nu=1,00,000



Description of the spatial discretization

  • coarse mesh (=level 1): 225 cells, 265 vertices, 1213 d.o.f.`s



  • uniform refinements with exact boundary adaption
  • visualization on level 4: 1,4400 cells, 1,4748 vertices, 72704 d.o.f.`s
  • computational mesh on level 4: 1,4400 cells, 1,4748 vertices, 72704 d.o.f.`s
  • nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW




Description of the temporal discretization

  • 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




Computer requirements

  • date: 03/25/2004
    • simulation by: Amar Bujang Hegde
  • visualization by: Amar Bujang Hegde
  • SUN ULTRA1/140: 12.39MB, 1143 seconds
  • GMV data: 166.4MB
  • Software: FEATFLOW1.2 + BOUSS




Mathematical details

  • 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!




Please send any comments and suggestions to: featflow@featflow.de