Consider water at 20°C flowing past a 1-m-diameter cylinder. What doublet strength in m2/s is required to simulate this flow? If the stream pressure is 200 kPa, use in viscid theory to estimate the surface pressure at (a) 180°; (b) 135°; and (c) 90°. Fig P8.43

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D- 1 m 6 m/s 1?