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PEMFC modeling

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Old   January 8, 2016, 15:09
Default PEMFC modeling
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abdallah
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hi
i need help for this situation ??????????
iter continuity x-velocity y-velocity energy h2 o2 h2o uds-0 uds-1 uds-3 time/iter
V_stack = 0.900000 (V) ... V_open = 0.950000 (V) (single cell)
fcu: I_anode = 0.000000 (A/cm^2) ... I_cathode = 0.000000 (A/cm^2) ... dI_mea = 0.000000 (A/cm^2) ... dI_stk = 0.000000 (A/cm^2)

Error: divergence detected in AMG solver: species-0
Error Object: ()
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Old   June 26, 2016, 04:57
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Originally Posted by abdoudxdiag View Post
hi
i need help for this situation ??????????
iter continuity x-velocity y-velocity energy h2 o2 h2o uds-0 uds-1 uds-3 time/iter
V_stack = 0.900000 (V) ... V_open = 0.950000 (V) (single cell)
fcu: I_anode = 0.000000 (A/cm^2) ... I_cathode = 0.000000 (A/cm^2) ... dI_mea = 0.000000 (A/cm^2) ... dI_stk = 0.000000 (A/cm^2)

Error: divergence detected in AMG solver: species-0
Error Object: ()
I have the same error. Are you solve it?
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Old   June 26, 2016, 09:11
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A-A Azarafza
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Originally Posted by dmfo View Post
I have the same error. Are you solve it?


Hi,
Please, provide more details. I might be able to help you.
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Old   July 11, 2016, 23:27
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Hi,
Please, provide more details. I might be able to help you.
Hi,there.I am doing a unsteady fuel cell simulation.And the initial values are steady simulation.Steady simulation results are reasonable,but the unsteady results are obviously not reasonable.I focus on the water content result.Could you please tell me why?much obliged.
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