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Unformatted text preview: unknowns T 1 and T 2 , and we need two equations to determine them. Using the energy balance approach and taking the direction of all heat transfers to be towards the node under consideration, the finite difference formulations become Node 1 (at midpoint): ) ( ) )( 2 / ( 4 1 4 surr 1 1 2 1 = − + − Δ + Δ − + Δ − ∞ T T A T T x p h x T T kA x T T kA εσ Node 2 (at fin tip): ) )( 2 / ( ) )( 2 / ( 4 2 4 surr 2 2 1 = − Δ + − Δ + Δ − ∞ T T x p T T x p h x T T kA where is the crosssectional area and 4 / 2 D A π = D p = is the perimeter of the fin. 59...
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This note was uploaded on 01/19/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.
 Fall '10
 Dr.DanielArenas
 Thermodynamics, Mass, Heat

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