Page 253 - Introduction to Computational Fluid Dynamics
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                                                                                     PHASE CHANGE
                             9. Repeat Exercise 7 assuming that the convective heat transfer coefficient h and
                                associated ambient temperature T ∞ < T m are specified at r = R and T w is
                                unknown. Show that, in this problem, the interface movement is governed by
                                two parameters: the Stefan number St = C p (T m − T ∞ )/λ and the Biot number
                                Bi = hR/ K PCM . Assume T ∞ =−1 and T m = 0 and compute for Bi = 1, 5,
                                and 10. Plot the variation of T w and R i with time in each case.
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