Prepare a plot of surface temperature

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Question: Air at 1100°Cand 1013kPa pressure flows along a flat surface at a uniform velocity of 30 m/s. Investigate the problem of cooling this surface by transpiration cooling. At a point 1 m from the leading edge of the surface, consider the use of first air, then helium, as coolants, both of which are assumed to be available at 20°C. Prepare a plot of surface temperature as a function of coolant mass-flow rate per unit of surface area. Also calculate the surface temperature as a function of coolant mass-flow rate if the coolant were used merely to absorb heat rather than to pass into the boundary layer, assuming that the coolant leaves the system at surface temperature.

Reference no: EM131513774

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