Efficient mesh deformation based on Cartesian background mesh

Fang, Hong; Gong, Chunye; Yu, Caihui; Min, Changwan; Zhang, Xing; Liu, Jie; Xiao, Liquan

doi:10.1016/j.camwa.2016.10.023

Cited by 10 publications

(4 citation statements)

References 36 publications

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“…Any approach that has the potential to make grid-based ice accretion simulations for realistic configurations shall have the characteristics of automation, efficiency and robustness (Thompson et al , 2013). The most important approaches for mesh deformation (Fang et al , 2017) include the spring analogy method, linear elasticity analogy method, RBF-based method, background mesh based methods, partial differential equations (PDE)-based methods, finite macro-element mesh deformation methods and optimisation-based methods.…”

Section: Placement Of the Proposed Approach In The Icing Simulation Backgroundmentioning

confidence: 99%

“…As far as the authors ’ knowledge is concerned, this is the first time in scientific literature that RBF are proposed to handle icing simulations. A valuable exception is the Mesh Deformation Method Based on Cartesian Background Mesh (MDCBM) method proposed in Fang et al (2017), in which the use of RBF is foreseen just in the first stage of the methodological procedure. Some applications for evaluating snow accretions, however, are available in literature (Trenker and Payer, 2006; Allain et al , 2014; Zhu et al , 2017).…”

Section: Placement Of the Proposed Approach In The Icing Simulation Backgroundmentioning

confidence: 99%

“…The first drawback typically criticised is that the morphing applied through RBF excessively deteriorates the mesh quality, and such an effect may lead to numerical instabilities during CFD computing or, at worst, to unacceptable negative volume elements. The second drawback deals with the numerical complexity introduced by RBF, which leads the analyst to believe this method can be used only when a very limited number of RBF centres are used (Fang et al , 2017). Relating to mesh quality degradation, taking in mind that morphing methods always cause a certain degree of quality decay, there are several solutions to mitigate this unwanted effect.…”

Section: Placement Of the Proposed Approach In The Icing Simulation Backgroundmentioning

confidence: 99%

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RBF-based mesh morphing approach to perform icing simulations in the aviation sector

Groth

Costa

Biancolini

2019

AEAT

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Purpose Numerical simulation of icing has become a standard. Once the iced shape is known, however, the analyst needs to update the computational fluid dynamics (CFD) grid. This paper aims to propose a method to update the numerical mesh with ice profiles. Design/methodology/approach The present paper concerns a novel and fast radial basis functions (RBF) mesh morphing technique to efficiently and accurately perform ice accretion simulations on industrial models in the aviation sector. This method can be linked to CFD analyses to dynamically reproduce the ice growth. Findings To verify the consistency of the proposed approach, one of the most challenging ice profile selected in the LEWICE manual was replicated and simulated through CFD. To showcase the effectiveness of this technique, predefined ice profiles were automatically applied on two-dimensional (2D) and three-dimensional (3D) cases using both commercial and open-source CFD solvers. Practical implications If ice accreted shapes are available, the meshless characteristic of the proposed approach enables its coupling with the CFD solvers currently supported by the RBF4AERO platform including OpenFOAM, SU2 and ANSYS Fluent. The advantages provided by the use of RBF are the high performance and reliability, due to the fast application of mesh smoothing and the accuracy in controlling surface mesh nodes. Originality/value As far as authors’ knowledge is concerned, this is the first time in scientific literature that RBF are proposed to handle icing simulations. Due to the meshless characteristic of the RBF mesh morphing, the proposed approach is cross solver and can be used for both 2D and 3D geometries.

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Section: Placement Of the Proposed Approach In The Icing Simulation Backgroundmentioning

confidence: 99%

Section: Placement Of the Proposed Approach In The Icing Simulation Backgroundmentioning

confidence: 99%

Section: Placement Of the Proposed Approach In The Icing Simulation Backgroundmentioning

confidence: 99%

See 1 more Smart Citation

RBF-based mesh morphing approach to perform icing simulations in the aviation sector

Groth

Costa

Biancolini

2019

AEAT

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“…Jokonsson et al describe suggestions for choosing RBFs, and demonstrate that the computational cost will still grow as the mesh scale increases, even choosing the appropriate functions [1]. Considering the high computational cost, several approaches are proposed with greedy algorithm [21,26,27] or reducing the interpolated nodes [28][29][30]. The improved RBFs method has better computational efficiency and can also preserve the mesh quality well.…”

Section: Introductionmentioning

confidence: 99%

Mapping Based Quality Metrics for Mesh Deformation Algorithms Using Radial Basis Functions

Xie

Jia

Li³

et al. 2020

Applied Sciences

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The mesh deformation method based on radial basis functions is widely used in computational fluid dynamics (CFD) simulation with a moving boundary. The traditional method for generating CFD mesh quality metrics called mesh-based metrics use the information of deformed mesh with specific element node coordinates and a connectivity relationship. This paper develops a new mesh quality, metric evaluating method based on the mapping process between the initial and deformed mesh, which is named mapping-based metrics. Mapping-based metrics are evaluated based on the conception of the deformation principle in continuum mechanics. This method provides a new point for mesh quality evaluation without requirements of deformed mesh coordinates and element connectivity information. Three test cases show that, comparing with indirectly solving by a geometrical method, mapping-based metrics accurately reveal the changes of the angle and area over the whole deformed domain. Additionally, the mapping-based metrics give high applicability to the quality of deformed mesh compared to mesh-based metrics. The quality evaluation method for CFD mesh proposed in this paper is effective.

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Investigation of radial basis function dynamic mesh method with rotation correction based on adaptive background mesh

Tang,

Zheng,

Zhang

2024

Computers & Fluids

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Efficient mesh deformation based on Cartesian background mesh

Cited by 10 publications

References 36 publications

RBF-based mesh morphing approach to perform icing simulations in the aviation sector

RBF-based mesh morphing approach to perform icing simulations in the aviation sector

Mapping Based Quality Metrics for Mesh Deformation Algorithms Using Radial Basis Functions

Investigation of radial basis function dynamic mesh method with rotation correction based on adaptive background mesh

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