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arXiv 2202.07141cs.LGmath.OCphysics.flu-dyn
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气动外形优化中的机器学习

Machine Learning in Aerodynamic Shape Optimization

National University of Singapore(新加坡国立大学);University of Michigan(密歇根大学)

Jichao Li, Xiaosong Du, Joaquim R. R. A. Martins

摘要:

由于空气动力学数据的可用性和深度学习的持续发展,机器学习(ML)已越来越多地用于辅助空气动力学形状优化(ASO)。我们回顾了ML在ASO中的应用,并提供了一个关于最新技术和未来发展方向的观点。我们首先介绍传统的ASO和当前的挑战。接下来,我们将介绍ML基础知识,并详细介绍在ASO中取得成功的ML算法。然后,我们回顾了机器学习应用于ASO的三个方面:紧凑的几何设计空间,快速的空气动力学分析和高效的优化架构。除了提供一个全面的总结的研究,我们评论的实用性和有效性的开发方法。我们展示了尖端的ML方法如何使ASO受益并解决具有挑战性的需求,例如交互式设计优化。由于机器学习训练的高成本,实际的大规模设计优化仍然是一个挑战。建议进一步研究将ML模型构建与先验经验和知识(如物理信息ML)耦合,以解决大规模ASO问题。

英文摘要:

Machine learning (ML) has been increasingly used to aid aerodynamic shape optimization (ASO), thanks to the availability of aerodynamic data and continued developments in deep learning. We review the applications of ML in ASO to date and provide a perspective on the state-of-the-art and future directions. We first introduce conventional ASO and current challenges. Next, we introduce ML fundamentals and detail ML algorithms that have been successful in ASO. Then, we review ML applications to ASO addressing three aspects: compact geometric design space, fast aerodynamic analysis, and efficient optimization architecture. In addition to providing a comprehensive summary of the research, we comment on the practicality and effectiveness of the developed methods. We show how cutting-edge ML approaches can benefit ASO and address challenging demands, such as interactive design optimization. Practical large-scale design optimizations remain a challenge because of the high cost of ML training. Further research on coupling ML model construction with prior experience and knowledge, such as physics-informed ML, is recommended to solve large-scale ASO problems.

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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