(Answered) 1 atmospheric air flows over a flat plate as shown in fig

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1. Atmospheric air flows over a flat plate as shown in Fig. 4.17. Viscosity makes the air stick to the surface creating a thin boundary layer. Estimate the mass flux mm_ of the air across the surface that is 10 cm above the 120-cm wide plate if uðyÞ¼ 800y.

u(y)

figure 4.17

2. If a streamline is 5 cm above the flat plate of Fig. 4.17 at the leading edge, how far is it above the plate at the location where uðyÞ ¼ 800y?

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