Nusselt Number

fisicas1 · June 5, 2012, 21:40

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, 15:52

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

fisicas1 · June 10, 2012, 17:56

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, 01:38

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

fisicas1 · June 12, 2012, 10:04

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

thanks!!!!

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June 10, 2012, 15:52		#2
Ladnam Member Join Date: May 2010 Posts: 40 Rep Power: 16	For the Nusselt number field function you need to specify reference length, temperature and thermal conductivity.

June 11, 2012, 01:38		#4
Ladnam Member Join Date: May 2010 Posts: 40 Rep Power: 16	Ok, are you using the pipe surface as input to the line plot?

June 12, 2012, 10:04		#5
fisicas1 Member David L Join Date: May 2012 Posts: 43 Rep Power: 14	I was not using the pipe surface as input, I was using the fluid! thanks!!!!