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  3. re-derive an expression for average nul (= hll/k)

Re-derive an expression for average NuL (= hLL/k) for flow over a flat plate by integrating...

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Mechanical Engineering

Re-derive an expression for average NuL (= hLL/k) for flow overa flat plate by integrating the expression for average hL for amixed BL. For Rex,cr, use 123456 (keeping the same sequence), andfind the constant B (in Eq. 7.38). Also show that for Rex,cr =500,000, B is indeed equal to 871.

eq. 7.38=> NuL=(0.037 ReL^(4/5)-B)Pr^(1/3)

0.6<=Pr<=60

Rex,c <= ReL <=108

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