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Description of the flow problem
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length/width of channel: 14/3
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diameter of circles : 0.5
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maximum vertical speed of circles : +/-0.5
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Dirichlet b.c.'s on circle surface (= differentiation of the
circle speed)
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Dirichlet b.c.'s for right inflow with parabolic profile of
order 1
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natural b.c.'s on the right edge
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other b.c.'s: zero velocity at walls of the channels
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initial condition at t=0: starting from rest
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viscosity parameter: 1/nu=100
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Description of the spatial discretization
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coarse mesh (=level 1): 33 cells, 48 vertices, 193 d.o.f.`s
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same tensor product mesh for ALL TIME STEPS !!!
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visualization on level 5: 8,448 cells, 8,673 vertices, 42,688
d.o.f.`s
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computation on level 6: 33,792 cells, 34,241 vertices,
169,856 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=0.0066667
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equidistant time stepping for visualization with k= 0.04 (= 1
frame)
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Total time T=10 seconds corresponds to
1,500 time steps
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fractional step theta scheme
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Computer requirements
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date: 04/19/98
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simulation by: S.Turek
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visualization by: S.Turek
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SUN ULTRA 45/250: 26 MB, 263,962 seconds
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AVS data: 350 MB
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Software: FEATFLOW1.1 + CC2D_MOVBC
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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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