Troubleshooting Ion Exchange Membrane Desalination with Comsol - Low Voltage Fix

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4 replies · 3K views
Arash.t
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hello to every on
i m trying to desalinate seawater with an ion exchange membrane.
the initial voltage of my simulation is 5 volt and it increase to 7 and 9Volt
when i insert that data to Comsol it doesn't work and give the below error!
http://www.iran-eng.com/attachment.php?attachmentid=223509&d=1412972316
but when i insert the low voltage,for e.g 0.5 , 1, 1.5 Volt ,it run!
help me to fixed it

the pic of error:
http://www.iran-eng.com/attachment.php?attachmentid=223509&d=1412972316
 
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Please attach the file here or upload it somewhere else, using attachments from other forums do not work so we cannot see the picture (even if you might be able to see it).
 
the error :
 

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  • comsol.PNG
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You can try to change the initial values. Or check the equations you want to solve. Without (much) more details, it is impossible to tell what went wrong.
 
mfb said:
You can try to change the initial values. Or check the equations you want to solve. Without (much) more details, it is impossible to tell what went wrong.
i checked it
in the" study => stationary => parameter value list" if i inter the(0.5,0.5,1.5) the solutioncan converged.
but when i inter (5,7,9) this error happened!.
I really confused!