TELEMAC-MASCARET Forum: Prescribing the inflow (1/1)

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TOPIC: Prescribing the inflow

Prescribing the inflow 10 years 9 months ago #12018

st3255

Hi everbody,

I have a basic question. I want to put 30 m3s-1 into my model.
FUDAA gives me the cas and cas.liq files as attached.

Now I run the simulation and the listing output says that there are only 10 m3s-1 going into the model. Why is that and how do I fix it?

Here's an exemplary listing output:

--------------------------------------------------------------------------------
                          ADVECTION STEP
--------------------------------------------------------------------------------
                    DIFFUSION-PROPAGATION STEP
 GMRES (BIEF) :        1 ITERATIONS, ABSOLUTE PRECISION:   0.5989750E-16
--------------------------------------------------------------------------------
                       BALANCE OF WATER VOLUME
     VOLUME IN THE DOMAIN :    6212.270     M3
     FLUX BOUNDARY    1:     10.20000     M3/S  ( >0 : ENTERING  <0 : EXITING )
     FLUX BOUNDARY    2:    -10.14194     M3/S  ( >0 : ENTERING  <0 : EXITING )
     RELATIVE ERROR IN VOLUME AT T =        750.0     S :    0.1687818E-07
--------------------------------------------------------------------------------

Attachments:

ha9ffd94.zip (1KB)

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Prescribing the inflow 10 years 9 months ago #12020

jmhervouet	Hello, For some reason (?) Fudaa has put 10 m3/s at time 0, maybe to start smoothly. You just have to change in the file cas.liq. You may add lines yourself in cas.liq, for example so that the discharge goes from 1 to 30 m3/s in 10 time steps at the beginning, to avoid creating a wave. With best regards, Jean-Michel Hervouet
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