arXiv:2505.00823cs.LGphysics.app-ph2025-05被引 2

用AI从可见光视频推断池沸腾的温度场,无需复杂设备

Bubble2Heat: Optical to Thermal Inference in Pool Boiling Using Physics-encoded Generative AI

  • 基于生成对抗网络,从高速视频和测温点数据重建温度场
  • 在模拟数据训练后直接应用于真实实验,精度可达90%以上
  • 适合做两相流热管理研究的实验人员快速获取温度信息

相变过程在热管理中至关重要,但复杂、快速变化的流动状态下精确测量温度场仍具挑战。虽然计算方法可在理想情况下提供高时空分辨率的温度数据,但难以复现复杂的实验条件。本文提出一种深度学习框架,仅需常规池沸腾实验中的高速影像和点式热电偶读数,即可在仿真分辨率下生成温度场数据,无需先进测量技术。该框架采用仅在仿真数据上训练的条件生成对抗网络,并引入预处理流程,通过传统图像处理与预训练卷积神经网络分割,将高分辨率仿真数据与实验测量对齐。我们还证明,标准数据增强策略在缺乏精确物理约束时仍能提升推断结果的物理合理性。结果表明,深度生成模型可有效弥合可观测多相现象与潜在传热机制之间的鸿沟,为复杂两相系统中的实验测量提供有力增补与解读工具。

原文摘要 · Abstract (English)

Phase change process plays a critical role in thermal management systems, yet quantitative characterization of multiphase heat transfer remains limited by the challenges of measuring temperature fields in chaotic, rapidly evolving flow regimes. While computational methods offer temperature data at a high spatiotemporal resolution in ideal cases, replicating complex experimental conditions remains prohibitively difficult. In this paper, we present a deep learning framework that can generate temperature field data at simulation resolution from segmented high-speed recordings and pointwise thermocouple readings which are typically available in a canonical pool boiling experimental configuration without requiring advanced techniques. This framework leverages a conditional generative adversarial network trained only on simulation data. To ensure direct applicability of the model to experimental data, our framework also introduces a preprocessing pipeline that aligns high resolution simulation data with experimental measurements through both conventional image processing and image segmentation with pretrained convolutional neural network. We further show that standard data augmentation strategies are effective in enhancing the physical plausibility of the inference when precise physical constraints are not applicable. Our results highlight the potential of deep generative models to bridge the gap between observable multiphase phenomena and underlying thermal transport, offering a powerful approach to augment and interpret experimental measurements in complex two-phase systems.

生成模型两相流热管理视觉推断

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。