What is the name of the relation f/2 = St Pr2/3 = Stmass Sc2/3, and what are the names of the variables in it? Under what conditions is it valid? What is the importance of it in engineering?
What will be an ideal response?
The relation f / 2 = St Pr2/3 = StmassSc2/3 is known as the Chilton-Colburn analogy. Here St is the Stanton number, Pr is the Prandtl number, Stmass is the Stanton number in mass transfer, and Sc is the Schmidt number. The relation is valid for 0.6 < Pr < 60 and 0.6 < Sc < 3000. Its importance in engineering is that Chilton-Colburn analogy enables us to determine the seemingly unrelated friction, heat transfer, and mass transfer coefficients when only one of them is known or measured.
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What will be an ideal response?
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