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  3. 1 consider flow over a flat plate for which it...

Question: 1 consider flow over a flat plate for which it...

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1. Consider flow over a flat plate for which it is desired to determine the average heat transfer coefficient over the short span x1 to x2 , , where (x2 – x1 ) << L. Provide three different expressions that can be used to evaluate in terms of (a) the local coefficient at x = (x1+ x2 )/2, (b) the local coefficients at x1 and x2 , and (c) the average coefficients at x1 and x2 . Considering whether the flow is laminar, turbulent, or mixed, indicate when it is appropriate or inappropriate to used each of the equations.

l. Consider flow over a flat plate for which it is desired to determine the average heat transfer coefficient over the short span x1 to x2, h where (X2 x1) L. Provide three different expressions that can be used to evaluate in terms of (a the local coefficient at x F (xit x2) 2, (b) the local coefficients at x1 and x2, and (c) the average coefficients at x1 and Considering whether the flow is laminar, turbulent, or mixed, indicate when it is appropriat or inappropriate to used each of the equations. x1 x

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