基于POD和KAN的三维球水滴收集系数快速预测OA
Rapid prediction of water droplet collection coefficients on 3D spheres using POD and KAN
准确预测水滴收集系数是结冰分析和防除冰系统设计中的关键步骤.本文提出了基于本征正交分解(proper or-thogonal decomposition,POD)和科尔莫哥罗夫-阿诺德网络(Kolmogorov-Arnold networks,KAN)的快速预测模型(POD-KAN),用于精确预测三维球表面的水滴收集系数.首先利用 POD 方法提取水滴收集系数的本征模态以及相应的拟合系数.随后,构建以工况参数为输入、拟合系数为输出的 KAN 深度神经网络模型,实现水滴收集系数的快速预测.为提升模型的泛化能力,引入了水滴惯性参数,实现了不同直径球的水滴收集系数的快速计算.结果表明,本文提出的POD-KAN 预测模型适用于三维球水滴收集系数预测任务,能快速预测水滴收集系数且具有较高的预测精度,平均绝对误差为 3.386×10-4;使用 POD 对高维水滴收集系数进行降维并提取主要特征,可有效提升 KAN 模型的预测性能;模型训练完成后,相较于传统高保真数值模拟方法,水滴收集系数的计算效率提升了近 2.7×105 倍.该方法为飞机防除冰系统的快速迭代优化设计提供了高效可靠的技术支撑,对提升航空飞行安全具有重要的工程应用价值.
The accurate prediction of water droplet collection coefficients is essential for icing analysis and the design of anti-and de-icing systems.Traditional high-fidelity numerical simulation methods,however,are often hindered by their computational complexity and time-intensive nature.Deep learning-based rapid prediction methods present a promising avenue to address these challenges.In this study,we propose a fast prediction approach that leverages proper orthogonal decomposition(POD)and Kolmogorov-Arnold networks(KAN)to accurately predict water droplet collection coefficients on three-dimensional spherical surfaces.Using POD,we extract its dominant intrinsic modes and corresponding fitting coefficients.A KAN-based deep learning model is then developed to map working condition parameters to the fitting coefficients.Experimental results demonstrate that the proposed POD-KAN model is well-suited for predicting water droplet collection coefficients on 3D spheres,delivering high accuracy with an average absolute error of 3.386×10-4.Moreover,after model training,the computational efficiency for obtaining the water droplet collection coefficients is improved by nearly 2.7×105 times compared with traditional high-fidelity numerical simulations.This method provides efficient and reliable technical support for the rapid iterative optimization design of aircraft anti-icing/de-icing systems,and holds significant engineering application value for improving aviation flight safety.
夏宇昊;李庭宇;岳静;彭博;易贤
西南石油大学 计算机与软件学院,成都 610500||中国空气动力研究与发展中心 低速空气动力研究所,绵阳 621000中国空气动力研究与发展中心 低速空气动力研究所,绵阳 621000西南石油大学 计算机与软件学院,成都 610500西南石油大学 计算机与软件学院,成都 610500中国空气动力研究与发展中心 低速空气动力研究所,绵阳 621000
航空航天
水滴收集系数本征正交分解科尔莫哥罗夫-阿诺德网络深度学习快速计算
water droplet collection coefficientproper orthogonal decompositionKolmogorov-Arnold networksdeep learningrapid calculation
《空气动力学学报》 2026 (5)
66-75,10
国家自然科学基金(12502271)国家科技重大专项(2019-Ⅲ-0010-0054)
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