...: that differs from the arrangement of Eq. (2) . In the introduction to the “natural” analytic approach [ 4 ], de Monte recommends that the thermal diffusivity be kept with the temporal component because the nondimensional parameter δ is physically descriptive of transient behavior: It characterizes the ratio...

... is well below those of Eq. 22 . However, at very large times, the results of Eq. 16 slowly approach the steady-state value predicted by Eq. 22 as is illustrated in Fig. 3 . The temperature profile near a highly conducting sphere enclosed in an infinite conducting medium has been analytically...