用自适应注意力网络加速地下能源模拟,提升精度与效率。
Adaptive Physics Transformer with Fused Global-Local Attention for Subsurface Energy Systems
- 融合局部特征与全局物理影响的图注意力结构
- 在规则与不规则网格上均优于现有方法,支持超分辨率
- 首个直接从自适应网格模拟中学习的神经算子
地球地下系统是现代社会的核心,提供油气、地热、矿产资源,并作为主要CO₂封存储层。然而,受地质非均质性、高分辨率需求及多物理过程耦合时间尺度差异影响,全物理数值模拟计算成本极高。本文提出自适应物理变压器(APT),一种几何、网格与物理无关的神经算子,通过图编码器提取高分辨率局部异质特征,结合全局注意力机制捕捉长程物理影响。结果表明,APT在规则与不规则网格的地下任务中均超越当前最优架构,具备稳健的超分辨率能力。尤为关键的是,APT是首个直接从高分辨率自适应网格细化模拟中学习的模型。我们还验证了其优异的可扩展性与跨数据集学习能力,为大规模地下基础模型开发提供了可靠骨干。
原文摘要 · Abstract (English)
The Earth's subsurface is a cornerstone of modern society, providing essential energy resources like hydrocarbons, geothermal, and minerals while serving as the primary reservoir for $CO_2$ sequestration. However, full physics numerical simulations of these systems are notoriously computationally expensive due to geological heterogeneity, high resolution requirements, and the tight coupling of physical processes with distinct propagation time scales. Here we propose the $\textbf{Adaptive Physics Transformer}$ (APT), a geometry-, mesh-, and physics-agnostic neural operator that explicitly addresses these challenges. APT fuses a graph-based encoder to extract high-resolution local heterogeneous features with a global attention mechanism to resolve long-range physical impacts. Our results demonstrate that APT outperforms state-of-the-art architectures in subsurface tasks across both regular and irregular grids with robust super-resolution capabilities. Notably, APT is the first architecture that learns directly from HR-adaptive mesh refinement simulations. We also demonstrate APT's favorable scaling behavior and cross-dataset learning capability, positioning it as a robust and scalable backbone for large-scale subsurface foundation model development.
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