Exploration of Numerical Simulation Method of Spray Cooling Heat Transfer

Spray cooling has attracted widespread attention due to its advantages in high heat flux removal and high heat transfer coefficient. Simulation method for spray cooling was studied in this paper, to contribute to the design and application of spray cooling. Single-phase-mode and phase-change-mode spray cooling heat transfers were numerically studied with well-developed wall film models of fuel spray in internal combustion engines. Meanwhile, the spray cooling experimental rig was established, and the steady-state cooling test was implemented. Comparison between simulations and experiments shows that the CFD method with fuel spray wall film models could predict the single-phase-mode spray cooling well, but obviously underestimate the phase-change-mode spray cooling heat flux.