Non-Atmospheric Boundary Flow - time scale

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tbr
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Non-Atmospheric Boundary Flow - time scale

Post by tbr » Thu Sep 18, 2008 10:04 am

If I exported all non-atmospheric boundary flow to text file (option Export in the graphical display of the boundary fluxes) the text output contains more iterations for the same time scale (where, most of these iterations contain zero values). What does it mean? Time-dependent upper boundary condition is constant.

Jirka
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Post by Jirka » Fri Sep 19, 2008 12:27 am

The following 4 fluxes versus time are exported in the All Atmospheric fluxes file:
rAtm Potential flux across atmospheric boundary (Evaporation – Precipitation)
rRoot Potential transpiration
vAtm Actual flux across atmospheric boundary (may be different from rAtm due to flux reductions)
vRoot Actual transpiration

The following fluxes are exported in the All Non-Atmospheric fluxes file:
vVar1 Flux across boundary with specified time-variable head or flux 1
vConst Flux across boundary with specified constant head or flux
vSeep Flux across boundary with specified seepage face
vDrain Flux through drains
vBot Flux across boundary with specified free or deep drainage
vVar2 Flux across boundary with specified time-variable head or flux 2
vVar3 Flux across boundary with specified time-variable head or flux 3
vVar4 Flux across boundary with specified time-variable head or flux 4

J.

tbr
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Post by tbr » Mon Sep 22, 2008 8:14 am

Thanks for the information.
But, I cannot find any message about convergence level (similarly, as the balance deviation output in the SWAP model).
Where I can find information about cause of divergence and options to calculation correction?

Jirka
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Joined: Sat Mar 16, 2002 3:47 pm
Location: USA
Location: Riverside, CA

Post by Jirka » Mon Sep 22, 2008 1:32 pm

Number of iterations is printed into the Run_inf.out file. If the number of iteration is equal to the max number of iterations that is specified on the input, then there is something wrong with the simulation. It is usually due to inadequate temporal or spatial discretization.

J.

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