Computational Details:

Study of 'Shell and Tube' Heat-Exchanger exhibiting different tube arrangement Back to >>(Regularized) Driven Cavity (I) at low Reynolds number (height 1, width 1 of the cavity)<<


Description of the flow problem
Description of the spatial discretization
Description of the temporal discretization
Computer requirements
Mathematical details




Description of the flow problem

  • squared domain of length 4
  • 9 heated circles of 0.166 radii
  • inflow b.c.'s: u=1 at x=0,y>0 and x=0,y<1
  • outfolw b.c.'s: unknown at x=4,y>3 and x=4,y<4
  • other b.c's: zero at fixed walls
  • initial condition at t=0: starting from rest
  • viscosity parameter: 1/nu=1,000




Description of the spatial discretization

  • coarse mesh (=level 2): 520 cells, 592 vertices, 2760 d.o.f.`s



  • uniform refinements with exact boundary adaption
  • visualization on level 4: 8320 cells, 8632 vertices, 42240 d.o.f.`s
  • computational mesh on level 4: 8320 cells, 8632 vertices, 42240 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=0.3 (= 1 frame)
  • Total time T=30 corresponds to 3000 time steps
  • fractional step theta scheme




  Experiment Details

  • date: 03/05/2004
  • simulation by:Gaddam Maruthi prasad
  • visualization by: Gaddam Maruthi Prasad
  • SUN ULTRA1/140: 7 MB, 4766 seconds
  • GMV data: 176.6 MB
  • Software: FEATFLOW1.0 + 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