8.1. Derive the friction factor formula (8.13) recommended by Prandtl's one- seventh power velocity distribution (7.56).
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8.1. Derive the friction factor formula (8.13) recommended by Prandtl's one- seventh power velocity distribution (7.56).
8.1. Derive the friction factor formula (8.13) recommended by Prandtl's one- seventh power velocity distribution (7.56). In the course of this derivation, show that the average velocity is only slightly smaller than the centerline velocity, U=0.8170c.
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