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Help!! SPecies transport- CO air mixture

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Old   March 3, 2014, 10:41
Default Help!! SPecies transport- CO air mixture
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Prashant Thaker
Join Date: Jul 2013
Location: guwahati, India
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hi users,
i am modeling pollutant transport without reactions.

In the species transport model, I turn on 'inlet diffusion' with CO-air as the mixture template.
I have one inlet (velocity inlet) for the ambient air where i do not specify any mass fraction of species.

the other inlet is a road which i model as mass flow inlet with constant mass flux. Here I specify only CO mass fraction as 1.

In the results, i get very high CO concentration ( about 10^-4 kmol/m3)

Where am I going wrong??
Please help,

Thanks in advance,
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