Question: A rectangular cavity consists of two parallel. 0.5-m- square plates separated by a distance of 50 mm, with the lateral boundaries insulated. The heated plate

A rectangular cavity consists of two parallel. 0.5-m- square plates separated by a distance of 50 mm, with the lateral boundaries insulated. The heated plate is maintained at 325 K and the cooled plate at 275 K. Estimate the heat flux between the surfaces for three orientations of the cavity using the notation of Figure 9.6: vertical with τ = 90°, horizontal with τ = 0°, and horizontal with τ = 180°.

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