A Penalization Method for Eulerian Droplet Impingement Simulations towards Icing Applications

Lavoie, P.; Radenac, Emmanuel; Blanchard, Ghislain; Laurendeau, Éric; Villedieu, Philippe

doi:10.2514/6.2021-1442

Cited by 1 publication

(2 citation statements)

References 26 publications

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“…For the Eulerian droplet equations, the penalization method of [14] is used. When droplets impinge the body (v d • n φ > 0), no penalization is applied and the physical equations are solved in the solid.…”

Section: B Volume Penalization Methodsmentioning

confidence: 99%

“…The penalization methods used in this paper are designed to fill the solid cell with valid data. The solid cells are included in the interpolation stencil, hence the need for methods ensuring a controlled continuity of the solution across the solid-fluid interface, as described in [9,14]. The interpolation uses an inverse distance weight with a smoothing parameter to avoid dividing by zero when the interpolation point and stencil points are too close.…”

Section: Surface Data Extractionmentioning

confidence: 99%

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Immersed Boundary Methodology for Multistep Ice Accretion Using a Level Set

Lavoie

Radenac

Blanchard

et al. 2022

Journal of Aircraft

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The numerical prediction of in-flight ice accretion involves a sequential call to different modules including mesh generation, aerodynamics, droplet trajectories, wall heat transfer, ice accretion and geometry update. The automation of this process is critical as these solvers are embedded in a time loop which is repeated several times to obtain an accurate ice shape prediction. The robustness of ice accretion tools is often limited by the difficulty of generating meshes on complex ice shapes and also by the geometry update which can exhibit overlaps if not treated properly. As a replacement to the usual body-fitted approach, this paper investigates the application of an immersed boundary method in the ice accretion framework to avoid the mesh generation step. A level-set method is also used for the geometry update to automatically handle pathological cases. The proposed methodology is tested on 2D rime and glaze ice cases from the 1st AIAA Ice Prediction Workshop, showing good correspondence with the body-fitted approach. The new methodology also performs well for a 2D three-element airfoil configuration when a proper mesh refinement is used. The immersed boundary method combined with the level-set ice accretion provides a viable alternative to the body-fitted approach.

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Section: B Volume Penalization Methodsmentioning

confidence: 99%

Section: Surface Data Extractionmentioning

confidence: 99%