Square channel with isothermal inner and outer surfaces Note

Square channel with isothermal inner and outer surfaces. Note simplification achieved by identifying lines of symmetry. Requirements for curvilinear squares: Intersection of isotherms and heat flow lines at right angles Approximate equivalence of sums of opposite sides Delta x = ab + cd/2 ac + bd/2 = Delta y Determination of heat rate: q Mq, M[k(Delta y middot l)Delta T_j/Delta x] Ml/N k Delta T_1 - 2 q\' M/N k Delta T_1 -2

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