The aim of this MCIPB is the
simulation of a flood.
The current version of TELEMAC is unable to simulate this view of mass
flow.
A Fortran program have to be created in order to simulate the flood.
At the end of the princi.f file, we wrote consequently
this
short program.
In order to have good boundary conditions, we started the simulation
with the without flood results file called restart file.
The flood is consequently computed after only 200 s because it is useless
to simulate 1h with 10 m3/s.
The simulation lasted about 16 h.
Simulation results
The following picture shows the water hight in the valley
t=30000s
We notice that the river is quiet, there is no flood yet.
t=46800s
The flood begins and the water is higher in the shortest valley.
t=51000s
The flood of the little valley arrives in the junction whereas the others flood are going down the biggest valley.
t=58200s
The flood in the biggest valley is more important than in the shortest one. This flood is now in the main valley.
t=64800s
Both floods met in the junction.
t=76800
The flood is going to get out of the valley, but it is still high in the biggest valley.
Analysis
- It is difficult to have the bright beginning of
the flood
- There is a difference between the beginning flood
inposed and the computed one.
Indeed, the flood had to
begin after 20 000 s and not still 40 000 s.
- We do not have the end of the flood because of
the former analysis
The following picture shows
the water height in the center of the biggest valley.
x=-1000 and y=23500
The water height begun
to decrease as expected.
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