The thin runback water films driven by the gas flow, the pressure gradient and the gravity on the iced aircraft surface are investigated in this paper. A three-dimensional film flow model based on Finite Volume Method (FVM) and the lubrication theory is proposed to describe the flow. The depth-averaged velocity of the film is stored in Cartesian coordinates to avoid the appearance of the metric tensors. The governing equations are discretized in the first layer structured grid cell which is selected as the grids for film flow. In order to verify this method, comparisons between numerical results and experimental results of ice shapes on NACA 0012 airfoil and GLC-305 swept wing are presented, both showing a good agreement for rime and glaze ice condition. Overall, this model shows great potential to model ice accretion reasonably under different icing conditions. Besides, the present method doesn't require analytic metric terms, and can be easily coupled to existing finite volume solvers for logically Cartesian meshes.
Unveiling wing turbulence dynamics through explainable deep learning
ONERA（法国国家航空航天研究院）；Instituto Universitario de Matemática Pura y Aplicada, Universitat Politècnica de València（巴伦西亚理工大学纯数学与应用数学大学研究所）；University of Michigan（密歇根大学）；KTH Royal Institute of Technology（瑞典皇家理工学院）
