Question: Let the flow straighteners in Fig. P7.28 form an array of 20 20 boxes of size a = 4 cm and L = 25

Let the flow straighteners in Fig. P7.28 form an array of 20 × 20 boxes of size a = 4 cm and L = 25 cm. If the approach velocity is Uo = 12 m/s and the fluid is sea-level standard air, estimate (a) the total array drag and (b) the pressure drop across the array. Compare with Sec. 6.6.

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