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Relative error cumulated on volume too high
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TOPIC: Relative error cumulated on volume too high

Relative error cumulated on volume too high 2 weeks 2 days ago #46052

  • Sarib94
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hello, I am mainly using a simple channel with the side weir to record the velocities. Still, when I run the simulation, Relative error cumulated on volume too high which also shows that the initial volume is almost fully lost. I have tried to refine the mesh to be more coarser but still the result is same. i am also attaching the error image and files, if someone can look and respond to me what the issue might be, will be really helpful :)

Thanks
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Relative error cumulated on volume too high 3 days 17 hours ago #46130

  • pham
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Hello,

Which release do you use?

Using the main with 1 core, I have the following listing for the last time step:

================================================================================
ITERATION 14700 TIME: 2 H 2 MIN 30.0000 S ( 7350.0000 S)
ADVECTION STEP
DIFFUSION-PROPAGATION STEP
GMRES (BIEF) : 0 ITERATIONS, ABSOLUTE PRECISION: 0.7247783E-04
POSITIVE DEPTHS OBTAINED IN 17 ITERATIONS
BALANCE OF WATER VOLUME
VOLUME IN THE DOMAIN : 0.5737149E-02 M3
FLUX BOUNDARY 1: 0.3141180E-09 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 2: -0.1090616E-05 M3/S ( >0 : ENTERING <0 : EXITING )
FLUX BOUNDARY 3: -0.000000 M3/S ( >0 : ENTERING <0 : EXITING )
RELATIVE ERROR IN VOLUME AT T = 7350. S : -0.1447242E-15
FINAL BALANCE OF WATER VOLUME

RELATIVE ERROR CUMULATED ON VOLUME: -0.7754556E-14

INITIAL VOLUME : 6.158901 M3
FINAL VOLUME : 0.5737149E-02 M3
VOLUME THAT ENTERED THE DOMAIN: -6.153164 M3 ( IF <0 EXIT )
TOTAL VOLUME LOST : -0.4775954E-13 M3
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Relative error cumulated on volume too high

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