FLU-DYNLGOct 28, 2022

Applying Physics-Informed Enhanced Super-Resolution Generative Adversarial Networks to Turbulent Non-Premixed Combustion on Non-Uniform Meshes and Demonstration of an Accelerated Simulation Workflow

arXiv:2210.16248v15 citationsh-index: 18
Originality Incremental advance
AI Analysis

This work addresses the need for more efficient energy devices to combat climate change by improving simulation workflows for turbulent combustion, though it appears incremental as an extension of existing methodology.

This paper applied physics-informed enhanced super-resolution generative adversarial networks (PIESRGANs) to model turbulent non-premixed combustion on non-uniform meshes, demonstrating successful predictions for cases at untrained Reynolds numbers and developing a multi-mesh approach to handle mesh impact.

This paper extends the methodology to use physics-informed enhanced super-resolution generative adversarial networks (PIESRGANs) for LES subfilter modeling in turbulent flows with finite-rate chemistry and shows a successful application to a non-premixed temporal jet case. This is an important topic considering the need for more efficient and carbon-neutral energy devices to fight the climate change. Multiple a priori and a posteriori results are presented and discussed. As part of this, the impact of the underlying mesh on the prediction quality is emphasized, and a multi-mesh approach is developed. It is demonstrated how LES based on PIESRGAN can be employed to predict cases at Reynolds numbers which were not used for training. Finally, the amount of data needed for a successful prediction is elaborated.

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