|
|
Description of the flow problem
-
diameter of the circle: 2
-
rotational speed 1 (counterclockwise) on the circle
(tangential speed)
-
other b.c.'s: zero velocity at the characters
-
initial condition at t=0: starting fully developed
-
viscosity parameter: 1/nu=1,000,000
|
|
|
Description of the spatial discretization
-
coarse mesh (=level 1): 26 cells, 39 vertices, 158 d.o.f.'s
-
uniform refinements with exact boundary adaption
-
visualization and computing on level 6: 26,624 cells, 27,071
vertices, 134,016 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=0.0222223
-
equidistant time stepping for visualization with k= 0.2 (= 1
frame)
-
Total time T= 50 seconds corresponds to
2,250 time steps
-
fractional step theta scheme
|
|
|
Computer requirements
-
date: 12/16/98
-
simulation by: A.A. Nipah/J.F.Acker/L. Rivkind/S.Turek
-
visualization by: A.A. Nipah
-
SUN ULTRA 1/143MHZ 23.22 MB, 17,143 seconds
-
GMV data: 964.65 MB
-
Software: FEATFLOW1.1 (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
|
