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MVE-Net: : An Automatic 3-D Structured Mesh Validity Evaluation Framework Using Deep Neural Networks

Published: 01 December 2021 Publication History

Abstract

An important objective of quality control in CFD pre-processing is the facility to indicate to the engineer the validity of the generated mesh. Existing quality measures mainly focus on the subjective evaluation of the shape information of mesh elements, such as aspect ratio, skewness, and shape regularity, and often ignore mesh distribution details. In order to ensure a precise evaluation result, these measures usually work with knowledge-based manual re-evaluation, which heavily increases the meshing cost and hampers automation of the meshing process. In this work, we propose an automatic 3-D structured mesh validity evaluation framework, MVE-Net. It takes mesh files as input, employs deep neural networks to study the role of mesh point distribution on numerical accuracy, and finally outputs the overall validity of the mesh for the simulation. For training the network, we introduce the first 3-D mesh benchmark dataset containing 24576 labeled structured meshes with different models and sizes. The experimental results on the dataset demonstrate the potential of deep neural networks in 3-D mesh validity evaluation and the effectiveness of MVE-Net. The well-trained MVE-Net can be a useful and helpful tool in the fully automatic pre-processing procedure.

Highlights

A large-scale labeled benchmark dataset with 3-D structured mesh samples.
A novel deep neural network to learn CFD mesh quality features from point-based input.
An automatic mesh validity evaluation framework for meshes with different sizes and models.

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  • (2024)LAFlowNetEngineering Applications of Artificial Intelligence10.1016/j.engappai.2024.108896136:PAOnline publication date: 1-Oct-2024
  • (2023)Meshing using neural networks for improving the efficiency of computer modellingEngineering with Computers10.1007/s00366-023-01812-z39:6(3791-3820)Online publication date: 1-Dec-2023
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          Published In

          cover image Computer-Aided Design
          Computer-Aided Design  Volume 141, Issue C
          Dec 2021
          195 pages

          Publisher

          Butterworth-Heinemann

          United States

          Publication History

          Published: 01 December 2021

          Author Tags

          1. Computational fluid dynamics (CFD)
          2. Mesh validity
          3. Benchmark dataset
          4. Neural network

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          • (2024)DeepEnhancer: Temporally Consistent Focal Transformer for Comprehensive Video EnhancementProceedings of the 2024 International Conference on Multimedia Retrieval10.1145/3652583.3658031(969-977)Online publication date: 30-May-2024
          • (2024)LAFlowNetEngineering Applications of Artificial Intelligence10.1016/j.engappai.2024.108896136:PAOnline publication date: 1-Oct-2024
          • (2023)Meshing using neural networks for improving the efficiency of computer modellingEngineering with Computers10.1007/s00366-023-01812-z39:6(3791-3820)Online publication date: 1-Dec-2023
          • (2022)A novel neural network approach for airfoil mesh quality evaluationJournal of Parallel and Distributed Computing10.1016/j.jpdc.2022.03.006164:C(123-132)Online publication date: 18-May-2022
          • (2022)Evaluating mesh quality with graph neural networksEngineering with Computers10.1007/s00366-022-01720-838:5(4663-4673)Online publication date: 1-Oct-2022
          • (2022)MGNet: a novel differential mesh generation method based on unsupervised neural networksEngineering with Computers10.1007/s00366-022-01632-738:5(4409-4421)Online publication date: 1-Oct-2022

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