The finite element model is made the same as the

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Unformatted text preview: used with an initial integration time step (0.03333/20 = 0.001666 hr) greater than δ2/4α, where δ = minimum element conducting length (0.0203 ft) and α = thermal diffusivity ( = k/ γc = 0.1 ft2/hr). ANSYS Verification Manual . ANSYS Release 9.0 . 002114 . © SAS IP, Inc. 1–254 VM114 Note that the KBC key (not input) defaults to zero, resulting in the surface temperature load being ramped linearly to its final value. POST26 and POST1 are used to obtain the temperature history at the node locations, and the temperature distribution at t = 0.03333 hr, respectively. Results Comparison Time = 0.03333 hr Target ANSYS Ratio T, °F (Node 1) @ x = 0.0 ft 120.00 120.00 1.000 T, °F (Node 3) @ x = 0.0203 ft 79.32 79.07 0.997 T, °F (Node 4) @ x = 0.0441 ft 46.62 46.35 0.994 T, °F (Node 5) @ x = 0.0719 ft 23.44 23.25 0.992 T, °F (Node 6) @ x = 0.1044 ft 9.51 9.52 1.00 T, °F (Node 2) @ x = 0.3 ft 0.0 0.03 - Figure 114.2 Temperature vs. Time Plot ANSYS Verification Manual . ANSYS Release 9.0 . 002...
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