Pick out the correct equation ?
Correct answer: A. jH = (St)(Pr)2/3 = f/2
- A. jH = (St)(Pr)2/3 = f/2
- B. jH = (St)(Pr)1/3 = f/2
- C. jH = (St)2/3(Pr) = f/2
- D. jH = (St)1/3(Pr) = f/2
Explanation
The Colburn analogy defines jH = St Pr^(2/3), and for the usual analogy it equals f/2. Thus the exponent belongs on the Prandtl number, not on the Stanton number.
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