Drop Impact Simulation on Heated Structured Surfaces

In this study, hydrodynamics and heat transfer of a droplet (in mm range) impinging on a heated superhydrophobic subsequent bouncing are investigated. The simulations are conducted with in-house solver phaseFieldFoam, extended to implicitly account for air entrapment on superhydrophobic micro-texture. The result shows the Dirichlet boundary condition can be also employed for Cassie-Baxter condition without any major error and air entrapment has a negligible effect on heat transfer from the surface