提出AeroJEPA模型,用语义潜空间高效建模3D气动场,支持高分辨率输出与设计优化。
AeroJEPA: Learning Semantic Latent Representations for Scalable 3D Aerodynamic Field Modeling

- 用几何与工况的潜变量预测气动潜变量,解耦潜空间与场分辨率
- 在超大边界层场和跨翼型家族上实现高精度连续代理建模
- 潜空间可支持插值、线性探测与受控设计优化,适合工程应用
气动代理模型正被广泛用于替代多查询设计场景中的重复高保真CFD计算,但现有方法仍面临两大挑战:难以扩展到真实3D气动中出现的超大场域,且很少生成对分析与设计有直接价值的潜表示。我们提出AeroJEPA,一种面向气动场建模的联合嵌入预测架构,同时解决上述问题。该方法不直接从几何预测完整流场,而是从几何与运行条件的上下文潜变量预测目标流场潜变量,并可通过连续隐式解码器可选重建流场。此框架将潜变量预测与场分辨率解耦,同时促使潜空间具备语义组织性。我们在两个互补数据集上评估:HiLiftAeroML,侧重于高保真条件下极大规模边界层场;SuperWing,测试跨翼型家族的大规模泛化与潜空间优化。在这些基准上,AeroJEPA在连续气动场代理建模方面表现竞争力,能自然扩展至高分辨率输出,并学习到编码几何与气动量(未直接作为监督信号)的上下文与预测潜变量。进一步实验表明,所得潜空间支持可控插值、线性探测、概念向量运算及受约束的设计潜优化。结果表明,预测性潜学习是实现可扩展且具设计意义的气动代理建模的有前景方向。
原文摘要 · Abstract (English)
Aerodynamic surrogate models are increasingly used to replace repeated high-fidelity CFD evaluations in many-query design settings, but current approaches still face two important limitations: they often scale poorly to the very large fields arising in realistic 3D aerodynamics, and they rarely produce latent representations that are directly useful for analysis and design. We introduce AeroJEPA, a Joint-Embedding Predictive Architecture for aerodynamic field modeling that addresses both issues. Rather than predicting the full flow field directly from geometry, AeroJEPA predicts a target latent representation of the flow from a context latent representation of the geometry and operating conditions, and optionally reconstructs the field through a continuous implicit decoder. This formulation decouples latent prediction from field resolution while encouraging the latent space to organize semantically. We evaluate AeroJEPA on two complementary datasets: HiLiftAeroML, which stresses the method in a high-fidelity regime with extremely large boundary-layer fields, and SuperWing, which tests large-scale generalization and latent-space optimization over a broad family of transonic wings. Across these benchmarks, AeroJEPA is competitive as a continuous surrogate for aerodynamic fields, scales naturally to high-resolution outputs, and learns context and predicted latents that encode geometry and aerodynamic quantities not used directly as supervision. We further show that the resulting latent space supports controlled interpolation, linear probing, concept-vector arithmetic, and a constrained design latent-optimization experiment. These results suggest that predictive latent learning is a promising direction for scalable and design-meaningful aerodynamic surrogate modeling.
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