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## Main Question or Discussion Point

Hi

i need to calculate nusselt number for stimulation of air flow in a pipe with 5mm diameter and the pressure is 5atm.

it should be in the form:

Nu = N1 + N2 Re^N3*Pr^N4

and i want to calculate N1,N2,N3,N4.

but i dont know how?

can anyone Help?

i need to calculate nusselt number for stimulation of air flow in a pipe with 5mm diameter and the pressure is 5atm.

it should be in the form:

Nu = N1 + N2 Re^N3*Pr^N4

and i want to calculate N1,N2,N3,N4.

but i dont know how?

can anyone Help?