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Description of the flow problem
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nonstationary 2D channel flow over a "forward facing
step"
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channel width: before/after step/total: 3/10/13
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channel height: before/after step: 1/0.5
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inflow b.c.'s: parabolic with maximum velocity 1
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outflow b.c.'s: natural "do nothing" b.c.'s
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other b.c.'s: zero velocity at fixed walls
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initial condition at t=0: starting fully developped
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viscosity parameter: 1/nu=100,000
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Description of the spatial discretization
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coarse mesh (=level 1): 11 cells, 22 vertices, 75 d.o.f.`s
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uniform refinements with exact boundary adaption
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visualization on level 6: 23,552 cells, 23,969 vertices,
118,592 d.o.f.`s
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computational mesh on level 8: 376,832 cells, 378,497 vertices,
1,887,488 d.o.f.`s
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nonconforming nonparametric rotated bilinear fem's (meanvalue
version), UPW
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Description of the temporal discretization
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equidistant time stepping for computation with k=0.0055556
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equidistant time stepping for visualization with k=0.0333334
(= 1 frame)
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Total time T=10 corresponds to
1,800 time steps
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fractional step theta scheme
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Computer requirements
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date: 09/09/97
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simulation by: S.Turek
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visualization by: S.Turek
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SGI PowerIndigo2/R10: 310 MB, 282,283 seconds
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AVS data: 1,188 MB
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Software: FEATFLOW1.0 + BOUSS
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Mathematical details
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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.
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The problem-specific data for the applied software version
including parameter files and
input data can be downloaded
here!
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Please send any comments and suggestions to:
featflow@featflow.de
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