
Description of the flow problem

height of the characters: 2

width of the characters: 12

thickness of the characters: 0.1

inflow speed 1 at the left side

natural outflow at the rigth side

zero speed at the walls

inflow temperature 1 at the left side

natural b.c.'s for temperature at the walls

initial condition at t=0: starting from rest

viscosity parameter: 1/nu=100,000


Description of the spatial discretization

coarse mesh (=level 1): 159 cells, 320 vertices, 1,115
d.o.f.'s

uniform refinements with exact boundary adaption

visualization on level 5: 40,704 cells, 167,937 vertices,
330,752 d.o.f.`s

computational mesh on level 7: 651,264 cells, 661,505 vertices,
3,276,800 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=0.003703704

equidistant time stepping for visualization with k= 0.1 (= 1
frame)

Total time T= 50 seconds corresponds to
13,500 time steps

fractional step theta scheme


Computer requirements

date: 06/01/99

simulation by: S.Turek

visualization by: J.F.Acker

SUN ULTRA E450 / 250 MHZ 556 MB, 1,665,000 seconds

GMV data (binary): 1.26 GB

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 problemspecific 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
