
Description of the flow problem

length of domain: 4.8; height of domain: 1.98

length of truck: 0.6; height of truck: 0.36; distance to
street: 0.06

inflow b.c.'s: constant with (maximum) velocity 1 at the left
edge and at the upper wall

outflow b.c.'s: natural "do nothing" b.c.'s

other b.c.'s: zero velocity at fixed walls

initial condition at t=0: starting from rest

viscosity parameter: 1/nu=50


Description of the spatial discretization

coarse mesh (=level 1): 351 cells, 403 vertices, 1,859
d.o.f.`s

uniform refinements with exact boundary adaption

visualization on level 4: 22,464 cells, 22,880 vertices,
113,152 d.o.f.`s

computational mesh on level 5: 89,856 cells, 90,688 vertices,
450,944 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=0.01111112

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

Total time T=20 corresponds to
1,800 time steps

fractional step theta scheme


Computer requirements

date: 11/07/97

simulation by: S.Turek/A.Runge/A.Wild

visualization by: S.Turek

SGI PowerIndigo2/10K: 75 MB, 56,315 seconds

AVS data: 740 MB

Software: FEATFLOW1.0 + 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
