Calculation of Water Collection Efficiency Using a Multiphase Flow Solver

This paper reports a new method to calculate water collection efficiency. The method is based on a well-validated multiphase flow solver that solves the Navier–Stokes equations using the projection method on Cartesian grids and uses the moment-of-fluid method to construct the interfaces between different phases. The numerical method is validated against experimental results with good agreement. Using this method, the water collection efficiency of an MS(1)-317 wing is investigated. The current simulations show that the proposed method gives a better prediction of water collection efficiency when large drops are involved. The prediction is attributed to the better modeling of drop and airflow interaction, as well as the consideration of drop splashing.