Ansys Lumerical HEAT Transient Simulation — Lesson 2

The extremely high thermal conductivity of graphene has generated a lot of attention as a potential heat spreader. In the next unit, as a simple example of a transient heat transport simulation, we will calculate the time-resolved heat flow in a glass thin film with a few layers of graphene on top. The simulation is expected to show that the high thermal conductivity (2000 W/mK) of graphene makes the heat flow at the top layer of glass much faster as compared to the heat flow inside the film. As shown in the schematic below, we assume a 50 nm thickness for the graphene layer. By utilizing the symmetry of the structure, we can perform a 2D simulation instead of a 3D simulation similar to the thin film simulation performed in the My First Simulation section of this course. We will study the time evolution of the temperature profile of the thin film using the transient mode of the HEAT solver.