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Old   June 5, 2012, 21:40
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David L
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I have a pipe with heat flux outside, I have a line of point inside the pipe with a fluid, I should have the temperature the pressure and de Nusselt Number, but for temperature and pressure I have normal result but in the case of Nusselt Number my values are always 0. anyone know what is happening? we can see the pictures.
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Old   June 10, 2012, 15:52
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For the Nusselt number field function you need to specify reference length, temperature and thermal conductivity.
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Old   June 10, 2012, 17:56
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I used this values in the referent and the position is ok, because I have normal pressure and temperate in my point line
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Old   June 11, 2012, 01:38
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Ok, are you using the pipe surface as input to the line plot?
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Old   June 12, 2012, 10:04
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I was not using the pipe surface as input, I was using the fluid!


thanks!!!!
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