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-   -   Nusselt Number (http://www.cfd-online.com/Forums/star-ccm/102900-nusselt-number.html)

fisicas1 June 5, 2012 20:40

Nusselt Number
 
3 Attachment(s)
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.

Ladnam June 10, 2012 14:52

For the Nusselt number field function you need to specify reference length, temperature and thermal conductivity.

fisicas1 June 10, 2012 16:56

1 Attachment(s)
I used this values in the referent and the position is ok, because I have normal pressure and temperate in my point line

Ladnam June 11, 2012 00:38

Ok, are you using the pipe surface as input to the line plot?

fisicas1 June 12, 2012 09:04

I was not using the pipe surface as input, I was using the fluid! :o


thanks!!!!


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