In turbulent pipe flow the Blasius correlation, Eq XXXXXXXXXX), is said to be valid for Reynolds numbers up toRe = UD/u = 100,000. Using the analogies leading to Eq. XXXXXXXXXXfor the flat plate...

In turbulent pipe flow the Blasius correlation, Eq. (13.18), is said to be valid for Reynolds numbers up toRe = UD/u = 100,000. Using the analogies leading to Eq. (13.35) for the flat plate boundary layer, show that the corresponding upper limit of validity is about Rex = U~x/u = 3.3 x 106 • Compare this value with that given in the text.