Question

The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is

a.

2.36

b.

4.36

c.

120.36

d.

dependent on NRe only

Answer: (b).4.36

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Q. The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is

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