Question
a.
Fluid movement under the influence of buoyant forces resulting from change in density takes place in case of natural convection.
b.
The ratio NNu/NRe . Npr is called the Stanton number.
c.
The Peclet number is a measure of the ratio of energy transport by convection to that by conduction.
d.
The Colbum jH factor for heat transfer is given by Nst Npr.
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