Thermodynamics HW Solutions 749

Thermodynamics HW Solutions 749 -...

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Chapter 9 Natural Convection 9-76 "!PROBLEM 9-76" "GIVEN" L=5 "[m]" "T_s=85 [C], parameter to be varied" T_infinity=30 "[C]" "PROPERTIES" Fluid$='air' rho=Density(Fluid$, T=T_film, P=101.3) mu=Viscosity(Fluid$, T=T_film) nu=mu/rho beta=1/(T_film+273) T_film=1/2*(T_s+T_infinity) g=9.807 "[m/s^2], gravitational acceleration"
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Unformatted text preview: "ANALYSIS" Gr=(g*beta*(T_s-T_infinity)*L^3)/nu^2 Re=(Vel*L)/nu Gr/Re^2=0.1 T s [C] Vel [m/s] 50 5.598 55 6.233 60 6.801 65 7.318 70 7.793 75 8.233 80 8.646 85 9.033 90 9.4 95 9.747 100 10.08 105 10.39 110 10.69 115 10.98 120 11.26 125 11.53 130 11.79 135 12.03 140 12.27 145 12.51 150 12.73 9-72...
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