<ul><li>Data-driven modeling of fluid dynamics has seen rapid advancements with neural PDE solvers.</li><li>FD-Bench is introduced as a fair, modular, comprehensive, and reproducible benchmark for data-driven fluid simulation.</li><li>It systematically evaluates 85 baseline models across 10 flow scenarios, offering a modular design for fair comparisons.</li><li>This benchmark aims to address reproducibility and comparability issues, providing a foundation for evaluating future data-driven fluid models.</li></ul>

FD-Bench: A Modular and Fair Benchmark for Data-driven Fluid Simulation

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