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arXiv 2309.02462physics.flu-dyncs.LG
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通过深度强化学习实现三维圆柱的主动流动控制

Active flow control for three-dimensional cylinders through deep reinforcement learning

KTH Royal Institute of Technology(瑞典皇家理工学院);Barcelona Supercomputing Center - Centro Nacional de Supercomputación(巴塞罗那超级计算中心-国家超级计算中心)

Pol Suárez, Francisco Alcántara-Ávila, Arnau Miró, Jean Rabault, Bernat Font, Oriol Lehmkuhl, R. Vinuesa

AI总结:

本文提出基于多智能体深度强化学习框架,利用近端策略优化算法耦合计算流体力学求解器,通过多个独立控制的零净质量通量合成射流实现三维圆柱主动流动控制,在三种不同配置下均显著降低了阻力。

摘要:

本文首次提出了使用多个独立控制的零净质量通量合成射流进行主动流动控制的成功结果。射流沿三维圆柱的展向布置,旨在降低阻力系数。该方法基于深度强化学习框架,将计算流体力学求解器与使用近端策略优化算法的智能体耦合。我们实现了多智能体强化学习框架,具有诸多优势:它利用局部不变性,使控制能适应不同几何形状,促进迁移学习和智能体的交叉应用,并显著加快训练速度。本文报告了在问题的三种不同配置下应用基于DRL的控制后显著的阻力降低。

英文摘要:

This paper presents for the first time successful results of active flow control with multiple independently controlled zero-net-mass-flux synthetic jets. The jets are placed on a three-dimensional cylinder along its span with the aim of reducing the drag coefficient. The method is based on a deep-reinforcement-learning framework that couples a computational-fluid-dynamics solver with an agent using the proximal-policy-optimization algorithm. We implement a multi-agent reinforcement-learning framework which offers numerous advantages: it exploits local invariants, makes the control adaptable to different geometries, facilitates transfer learning and cross-application of agents and results in significant training speedup. In this contribution we report significant drag reduction after applying the DRL-based control in three different configurations of the problem.

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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