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arXiv 2406.04501cs.LGcs.AIcs.CLstat.ML
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FLUID-LLM:利用时空感知大语言模型学习计算流体动力学

FLUID-LLM: Learning Computational Fluid Dynamics with Spatiotemporal-aware Large Language Models

University of Cambridge(剑桥大学)

Max Zhu, Adrián Bazaga, Pietro Liò

AI总结:

本文提出FLUID-LLM框架,将预训练大语言模型与时空感知编码相结合,用于预测非定常流体动力学,在多个标准流体基准上显著提升了CFD任务性能。

摘要:

学习计算流体动力学(CFD)传统上依赖于对Navier-Stokes方程进行计算密集型的数值模拟。近年来,大语言模型(LLMs)在自然语言处理(NLP)和计算机视觉(CV)中展现出卓越的模式识别与推理能力。然而,这些模型难以处理流体动力学中固有的复杂几何结构。我们提出FLUID-LLM,这是一个结合预训练大语言模型与时空感知编码的新框架,用于预测非定常流体动力学。我们的方法利用大语言模型的时间自回归能力以及空间感知层,弥合了以往CFD预测方法之间的差距。在标准基准上的评估表明,FLUID-LLM在多个流体数据集上取得了显著的性能提升。我们的结果表明,FLUID-LLM能够有效地将时空信息整合到预训练大语言模型中,从而增强CFD任务性能。

英文摘要:

Learning computational fluid dynamics (CFD) traditionally relies on computationally intensive simulations of the Navier-Stokes equations. Recently, large language models (LLMs) have shown remarkable pattern recognition and reasoning abilities in natural language processing (NLP) and computer vision (CV). However, these models struggle with the complex geometries inherent in fluid dynamics. We introduce FLUID-LLM, a novel framework combining pre-trained LLMs with spatiotemporal-aware encoding to predict unsteady fluid dynamics. Our approach leverages the temporal autoregressive abilities of LLMs alongside spatial-aware layers, bridging the gap between previous CFD prediction methods. Evaluations on standard benchmarks reveal significant performance improvements across various fluid datasets. Our results demonstrate that FLUID-LLM effectively integrates spatiotemporal information into pre-trained LLMs, enhancing CFD task performance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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