Abstract: Described herein are a method, system, and computer readable medium for estimating a diffusion potential (such as temperature) of a diffusive property (such as thermal energy, referred to herein as “heat”). The method includes modeling as a circuit a diffusion region having two subregions to which the diffusive property is introduced at different rates and through which the diffusive property linearly diffuses. The nodes of the circuit include a dividing node that divides branches of the circuit that model the two subregions. A circuit potential at one of the nodes of the circuit corresponds to the diffusion potential at a location within the diffusion region. The diffusion potential at the location within the diffusion region is estimated by simulating operating of the circuit and determining the circuit potential at the node of the circuit.