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Description of the flow problem
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length of channel: 2.2, height 0.4, diameter of circle: 0.05
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inflow b.c.'s: parabolic with (maximum) velocity 1.5 at the
left edge
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outflow b.c.'s: natural "do nothing" b.c.'s
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circle b.c.'s: rotational tangential speed of size 0 (no
slip), 0.1, 1 and 5
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other b.c.'s: zero velocity at fixed walls
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initial condition at t=0: starting from fully developed
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viscosity parameter: 1/nu=5,000
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Description of the spatial discretization
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coarse mesh (=level 1): 130 cells, 156 vertices, 702 d.o.f.`s
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uniform refinements with exact boundary adaption
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visualization on level 4: 8,320 cells, 8,528 vertices, 42,016
d.o.f.`s
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computational mesh on level 6: 133,120 cells, 133,952 vertices,
667,264 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=0.00111112
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equidistant time stepping for visualization with k=0.01 (= 1
frame)
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Total time T=2.5 corresponds to
2,250 time steps
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fractional step theta scheme
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Computer requirements
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date: 11/20/97
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simulation by: S.Turek/H.Scharr
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visualization by: S.Turek/H.Scharr
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SUN ULTRA 30/300MHZ: 114 MB, 67,015 seconds (each about)
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AVS data: 350 MB (each about)
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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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