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1

Hi all,

I did a variable density simulation using RICHARDS_FLOW and MASS_TRANSPORT. The OGS version 5.6 shows

For process: RICHARDS_FLOW
No time control for this process.
Number of non-converged iterations: 0
Number of stagnated iterations: 20

For process: MASS_TRANSPORT
No time control for this process.

···

GetRFProcessProcessingAndActivation - to be removed

^O^: Your simulation is terminated normally ^O^
Simulation time: 86s

Does the stagnated iterations: 20 mean that something wrong with the parameters? I would appreciate if you can take a look at the input files at https://dx.doi.org/10.6084/m9.figshare.2070145, though the simulation result looks okay (http://americangeophysicalunion.tumblr.com/post/138666618953/hey-everyone-i-did-a-modeling-study-of)

Best,

Xuan

2

'stagnated iterations' means the number of diverged in linearisation but acceptable time steps.

···

On 02/10/2016 04:27 PM, Xuan Yu wrote:

Hi all,

I did a variable density simulation using RICHARDS_FLOW and MASS_TRANSPORT. The OGS version 5.6 shows

For process: RICHARDS_FLOW
No time control for this process.
Number of non-converged iterations: 0
Number of stagnated iterations: 20

For process: MASS_TRANSPORT
No time control for this process.

----------------------------------------------------
GetRFProcessProcessingAndActivation - to be removed

^O^: Your simulation is terminated normally ^O^
Simulation time: 86s

Does the stagnated iterations: 20 mean that something wrong with the parameters? I would appreciate if you can take a look at the input files at OpenGeoSys simulation of seawater intrusion, though the simulation result looks okay (Hey everyone, I did a modeling study of... - AGU on Tumblr)

Best,

Xuan
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3

Hi Wenqing,
Should we try to avoid it by modify numerical parameters, Or it is okay?

···

On Thursday, February 11, 2016 at 4:16:26 AM UTC-5, Wenqing Wang wrote:

  'stagnated iterations' means the number of diverged in linearisation but acceptable time steps. 



  On 02/10/2016 04:27 PM, Xuan Yu wrote:

Hi all,

    I did a variable density simulation using RICHARDS_FLOW and MASS_TRANSPORT. The OGS version 5.6 shows



    For process: RICHARDS_FLOW

    No time control for this process.

    Number of non-converged iterations: 0

    Number of stagnated iterations:     20



    For process: MASS_TRANSPORT

    No time control for this process.



    ----------------------------------------------------

    GetRFProcessProcessingAndActivation - to be removed



    ^O^: Your simulation is terminated normally ^O^

    Simulation time: 86s





    Does the stagnated iterations: 20 mean that something wrong with the parameters? I would appreciate if you can take a look at the input files at [https://dx.doi.org/10.6084/m9.figshare.2070145](https://dx.doi.org/10.6084/m9.figshare.2070145)        , though the simulation result looks okay ([http://americangeophysicalunion.tumblr.com/post/138666618953/hey-everyone-i-did-a-modeling-study-of](http://americangeophysicalunion.tumblr.com/post/138666618953/hey-everyone-i-did-a-modeling-study-of))





    Best,



    Xuan

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4

You can try by changing numerical setting and time step size,

···

On 02/15/2016 08:43 PM, Xuan Yu wrote:

Hi Wenqing,
Should we try to avoid it by modify numerical parameters, Or it is okay?

On Thursday, February 11, 2016 at 4:16:26 AM UTC-5, Wenqing Wang wrote:

    'stagnated iterations' means the number of diverged in
    linearisation but acceptable time steps.

    On 02/10/2016 04:27 PM, Xuan Yu wrote:

    Hi all,

    I did a variable density simulation using RICHARDS_FLOW and
    MASS_TRANSPORT. The OGS version 5.6 shows

    For process: RICHARDS_FLOW
    No time control for this process.
    Number of non-converged iterations: 0
    Number of stagnated iterations: 20

    For process: MASS_TRANSPORT
    No time control for this process.

    ----------------------------------------------------
    GetRFProcessProcessingAndActivation - to be removed

    ^O^: Your simulation is terminated normally ^O^
    Simulation time: 86s

    Does the stagnated iterations: 20 mean that something wrong with
    the parameters? I would appreciate if you can take a look at the
    input files at OpenGeoSys simulation of seawater intrusion
    <https://dx.doi.org/10.6084/m9.figshare.2070145&gt;, though the
    simulation result looks okay
    (Hey everyone, I did a modeling study of... - AGU on Tumblr
    <Hey everyone, I did a modeling study of... - AGU on Tumblr)

    Best,

    Xuan
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