Abstract
A framework for icing simulations, using state-of-the-art technology for solving mesh, airflow and droplets equations, is presented. A two-dimensional Eulerian droplet flow solver has been developped with multi-timesteps approach and extended with infinite swept wing hypothesis. The overarching objective is to enable fast three-dimensional ice prediction by the calculation of several 2D computations along the swept wing span. The droplets crossflow equation is solved using the decoupled implicit Euler scheme used for the 2D system, without added complexity, nor degradation in performances. A thermodynamic module based on an iterative Messinger approach has been developped to treat multi-stagnation points. The 2D solver is validated on two cases, rime and glaze, against experimental data and other numerical codes. The infinite swept wing droplets solver is successfully validated against 3D infinite swept wing results obtained with NSMB-ICE, a 3D ice accretion solver. Finaly, a comparison is performed on a finite swept wing with NSMB-ICE results, experimental data and LEWICE results, demonstrating the feasability of the infinite swept wing approach.
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