Multi-Layer Ice Accretion Simulations Using a Level-Set Method With B-Spline Representation

Bourgault-Cote, Simon; Docampo-Sánchez‬, ‪Julia; Laurendeau, Éric

doi:10.2514/6.2018-1835

Cited by 9 publications

(6 citation statements)

References 17 publications

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“…This section presents three ice-accretion problems over a NACA0012 airfoil, representative of different icing conditions, such as rime ice, glaze ice, and an intermediate condition called mixed ice [38]. The proposed conservative level-set interface tracking strategy results are compared to the available numerical data by Bourgault-Côté et al [39],…”

Section: Icing Simulationsmentioning

confidence: 99%

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Level-Set Mass-Conservative Front-Tracking Technique for Multistep Simulations of In-Flight Ice Accretion

Donizetti

Bellosta

Rausa

et al. 2023

Journal of Aircraft

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This paper presents a novel level-set-based approach to model evolving boundary problems for in-flight ice accretion. No partial differential equations are solved as in the standard level-set formulation, but simple geometrical quantities are employed to provide an implicit discretization of the updated boundary. This method avoids mesh entanglements and grid intersections typical of algebraic and mesh deforming techniques, making it suitable for generating a body-fitted discretization of arbitrarily complex geometries as in-flight ice shapes, including the collision of separate ice fronts. Moreover, this paper presents a local ice thickness correction, which accounts for the body’s curvature, to conserve the prescribed iced mass locally. The verification includes ice accretion over an ellipse and a manufactured example to show the proposed strategy’s advantages and robustness compared to standard algebraic methods. Finally, the method is applied to ice accretion problems. A temporal and grid convergence study is presented for automatic multistep in-flight simulations over a NACA0012 airfoil in rime, glaze, and mixed ice conditions.

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Section: Icing Simulationsmentioning

confidence: 99%

“…Fig.12Glaze Ice over a NACA 0012 airfoil. Numerical results obtained with the proposed level-set approach and the PoliMIce suite are compared to the experimental data from Wright et al[40] and numerical data by Bourgault-Côté et al[39] …”

mentioning

confidence: 99%

Level-Set Mass-Conservative Front-Tracking Technique for Multistep Simulations of In-Flight Ice Accretion

Donizetti

Bellosta

Rausa

et al. 2023

Journal of Aircraft

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“…In this section, we present two ice-accretion problems over a NACA0012 airfoil, representative of two different icing phenomena, that is, glaze and mixed ice [10]. We can compare the results of the proposed conservative level-set interface tracking strategy to the available numerical [8] and experimental [11]…”

Section: Icing Simulationsmentioning

confidence: 99%

“…The idea to represent the air-ice interface through a level-set function was already proposed in [7] and [8]. The novel aspects of this work are the following ones.…”

Section: Introductionmentioning

confidence: 99%

A level-set based mesh adaptation technique for mass conservative ice accretion in unsteady simulations

Donizetti¹,

Re²,

Guardone³

2021

9th Edition of the International Conference on Computational Methods for Coupled Problems in Science and Engineering

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This paper presents an innovative approach to model evolving boundaries problems due to the accumulation or erosion of material over a surface, offering a robust alternative to standard algebraic methods. The strategy is based on the level-set method and it allows the local conservation of the prescribed mass material accounting for the curvature of the body. No partial differential equations are solved for the level-set function, but simple geometric quantities are used to provide an implicit discretization of the new updated boundary. The method is applied to body-fitted unstructured grids, that allow a good representation of arbitrarily complex geometries. Two multi-step in-flight ice accretion simulations over a NACA0012 are presented to show the feasibility and adaptability of the method, that can be also extended to three-dimensional applications.

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“…As shown in Fig. 1a, this results in an auto-amplifying phenomenon [8,9], which can hinder the stability of the multi-step procedure or lead to non-physical ice shape predictions.…”

Section: Introductionmentioning

confidence: 99%

Ice Shape Convergence in Multi-Step Ice Accretion Simulations over Straight Wings

Donizetti,

Bellosta,

Guardone

2024

AIAA SCITECH 2024 Forum

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Local errors in the geometrical description of the ice front are amplified in multi-step simulations over conformal meshes due to the coupling of aerodynamics, water impingement, ice accretion, and grid deformation. Small perturbations in the initial phase of ice formation possibly result in dramatically different ice shapes which can hinder the stability of the multi-step procedure. This problem is analyzed by investigating the combined effects of space and time discretization on the ice growth over airfoils and three-dimensional wings. We propose an automatic procedure for selecting the time interval for the update of the aerodynamics and particle impingement. A local growth limiter 𝜆 is introduced here to bound the local ice thickness growth to be comparable to the local grid spacing on the surface, resulting in an automatic adaptive time-step to be used in the multi-step simulation. Examples are provided for three-dimensional cases under both rime and glaze conditions over straight wings. These examples highlight the different accretion mechanisms of the two ice regimes and preliminary indicate that ice-shape convergence can be achieved for low values of 𝜆.

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Multi-Layer Ice Accretion Simulations Using a Level-Set Method With B-Spline Representation

Cited by 9 publications

References 17 publications

Level-Set Mass-Conservative Front-Tracking Technique for Multistep Simulations of In-Flight Ice Accretion

Level-Set Mass-Conservative Front-Tracking Technique for Multistep Simulations of In-Flight Ice Accretion

A level-set based mesh adaptation technique for mass conservative ice accretion in unsteady simulations

Ice Shape Convergence in Multi-Step Ice Accretion Simulations over Straight Wings

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