A single step ice accretion model using Level-Set method

Pena, Dorian; Hoarau, Yannick; Laurendeau, Éric

doi:10.1016/j.jfluidstructs.2016.06.001

Cited by 34 publications

(12 citation statements)

References 28 publications

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“…This is caused by the geometry evolution solver, which has difficulties to solve highly concave areas. A level set approach, such as that presented by Pena et al (2016), performs well for this particular case.…”

Section: Comparison Studymentioning

confidence: 97%

Comparison of thermodynamic models for ice accretion on airfoils

Lavoie¹,

Pena²,

Hoarau

et al. 2018

HFF

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Purpose This paper aims to assess the strengths and weaknesses of four thermodynamic models used in aircraft icing simulations to orient the development or the choice of an improved thermodynamic model. Design/methodology/approach Four models are compared to assess their capabilities: Messinger, iterative Messinger, extended Messinger and shallow water icing models. They have been implemented in the aero-icing framework, NSCODE-ICE, under development at Polytechnique Montreal since 2012. Comparison is performed over typical rime and glaze ice cases. Furthermore, a manufactured geometry with multiple recirculation zones is proposed as a benchmark test to assess the efficiency in runback water modeling and geometry evolution. Findings The comparison shows that one of the main differences is the runback water modeling. Runback modeling based on the location of the stagnation point fails to capture the water film behavior in the presence of recirculation zones on airfoils. However, runback modeling based on air shear stress is more suitable in this situation and can also handle water accumulation while the other models cannot. Also, accounting for the conduction through the ice layer is found to have a great impact on the final ice shape as it increases the overall freezing fraction. Originality/value This paper helps visualize the effect of different thermodynamic models implemented in the same aero-icing framework. Also, the use of a complex manufactured geometry highlights weaknesses not normally noticeable with classic ice accretion simulations. To help with the visualization, the ice shape is presented with the water layer, which is not shown on typical icing results.

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Section: Comparison Studymentioning

confidence: 97%

Comparison of thermodynamic models for ice accretion on airfoils

Lavoie¹,

Pena²,

Hoarau

et al. 2018

HFF

Self Cite

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“…1 where the modules are: (1) a mesh generation tool, (2) a solver for the aerodynamics, (3) a solver to obtain the droplet trajectories and impingement rates, (4) a solver to obtain the wall convective heat transfer (in the boundary layer), (5) a solver to perform a heat and mass balance applied to the deposited water to obtain the ice accretion rate and finally (6) a tool to update the geometry based on the ice thickness evolution. Modules (1) to (6) are embedded in a time loop for which the total ice accretion time is divided in time steps (multi-step) generating successive layers of ice (multi-layer). When using Body-Fitted meshes, a mesh update is required with each new ice layer.…”

Section: Introductionmentioning

confidence: 99%

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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“…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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A single step ice accretion model using Level-Set method

Cited by 34 publications

References 28 publications

Comparison of thermodynamic models for ice accretion on airfoils

Comparison of thermodynamic models for ice accretion on airfoils

Immersed Boundary Methodology for Multistep Ice Accretion Using a Level Set

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

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