“…The Pennes equation belongs to the group of the so-called macroscopic tissue models. It should be pointed out that the tissue models can also be described by the Cattaneo-Vernotte equation [8] or the dual phase lag equation [9,10], but the Pennes approach is, so far, the most commonly used. The forearm domain is a non-homogeneous one and represents the composition of skin tissue, fat, muscle, bone and blood vessels (arteries and veins).…”