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| Description
of the flow problem
- wedge shaped domain with half-angle 20
- inflow b.c.'s: velocity due to gravity at the top of the
hopper
- outflow b.c's: velocity due to gravity at the bottom of
the
hopper
- Other b.c.'s: zero velocity at the fixed walls
- initial condition at t=0: starting from rest
- viscosity parameter: 1/nu=1,000
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| Description
of the spatial discretization
- coarse mesh (=level 1): 16 cells, 25 vertices, 96 d.o.f.`s
- uniform refinements with exact boundary adaption
- visualization on level 6: 16,384 cells, 16,641 vertices,
82,432 d.o.f.`s
- computational mesh on level 6: 16,384 cells, 16,641
vertices, 82,432 d.o.f.`s
- nonconforming nonparametric rotated bilinear fem's
(meanvalue version), UPW
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| Description
of the temporal discretization
- equidistant time stepping for computation with k=0.01
- equidistant time stepping for visualization with k=0.5 (=
1 frame)
- Total time T=6 corresponds to 3,000
time steps
- fractional step theta scheme
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| Computer
requirements
- Date: 03/30/2004
- Simulation by: Mandali Venkata Himachandar
- Visualization by: Mandali Venkata Himachandar
- Pentium III /500 MHz : 17.66 MB, 629.42 seconds
- GMV data: 2.27 MB
- Software: FEATFLOW1.2 + BOUSS_POWERLAW
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| 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!
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Please send any comments and suggestions to: featflow@featflow.de
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