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Flow reconstruction in time-varying geometries using graph neural networks

Published in ArXiv, 2024

The paper introduces a Graph Attention Convolutional Network (GACN) for flow reconstruction from sparse data in time-varying geometries. It employs a feature propagation algorithm to handle missing data and a binary validity mask to enhance learning. Trained on Direct Numerical Simulations (DNS) of a motored engine, GACN demonstrates robustness across resolutions and domain sizes, outperforming CNNs and cubic interpolation in reconstructing fine-scale turbulence. It generalizes well to unseen DNS and experimental PIV data, successfully reconstructing flow fields from domains up to 14 times larger than those in training.

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teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

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Teaching experience 2

Workshop, University 1, Department, 2015

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