Stability analysis of volatile liquid films in different evaporation regimes

We investigate the role that vapor diffusion plays in the evolution of an evaporating liquid film using a coupled liquid-vapor system in which the evaporation rate is dictated by both the film's thickness and its curvature. Under this kinetic-diffusion model, the thermocapillary Marangoni effect is split into two distinct components: the first results from surface tension gradients driven by uneven heating while the second arises from surface tension gradients caused by imbalances in vapor diffusion. Notably, these two components interact with evaporative mass loss and vapor recoil in a rich and complex manner, which we analyze within the temporal and spatiotemporal frameworks.